Host Nan Kelley and special guest Taylor Swift share a laugh on the set of the Top 20 Country Countdown.

GAC host Suzanne Alexander with special guest Jason Aldean on the set of Top 20 Country Countdown.

GAC host Nan Kelley catches up with country cutie Luke Bryan on the Luke Bryan Farm Tour.

GAC host Nan Kelley with The Peach Pickers on the Luke Bryan Farm Tour.

GAC host Nan Kelley with special guest Kimberly Schlapman on the set of Top 20 Country Countdown.

GAC host Nan Kelley with special guest Easton Corbin on the set of Top 20 Country Countdown.

GAC host Nan Kelley with special guests Little Big Town on the set of Top 20 Country Countdown.

Host Nan Kelley at Bristol Motor Speedway with Carl Edwards.

Host Nan Kelley at Bristol Motor Speedway with Trevor Bayne.

Host Nan Kelley at Bristol Motor Speedway with Ricky Stenhouse, Jr.

Host Nan Kelley at Bristol Motor Speedway.

Host Suzanne Alexander and special guest Bucky Covington on the set of GAC's Top 20 Country Countdown.

Host Suzanne Alexander and special guest Dustin Lynch on the set of GAC's Top 20 Country Countdown.

This week’s Top 20 Country Countdown was shot at The Imus Ranch in Ribera, NM, a 4,000 acre working cattle ranch owned by radio star Don Imus and his wife Deirdre that provides the experience of the great American cowboy to children facing cancer or serious blood disorders.

This week’s Top 20 Country Countdown was shot at The Imus Ranch in Ribera, NM, a 4,000 acre working cattle ranch owned by radio star Don Imus and his wife Deirdre that provides the experience of the great American cowboy to children facing cancer or serious blood disorders.

This week’s Top 20 Country Countdown was shot at The Imus Ranch in Ribera, NM, a 4,000 acre working cattle ranch owned by radio star Don Imus and his wife Deirdre that provides the experience of the great American cowboy to children facing cancer or serious blood disorders.

Host Nan Kelley hangs out with Blake Shelton at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Miranda Lambert at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Sara Evans at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Brantley Gilbert at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Thompson Square at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Jon Pardi at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Thomas Rhett at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Tracy Lawrence at the inaugural Watershed Music Festival.

Host Nan Kelley hangs out with Uncle Kracker at the inaugural Watershed Music Festival.

Top 20 Host Nan Kelley and Kenny Chesney at rehearsals for his Brothers of the Sun tour.

Top 20 host Nan Kelley and Gary Allan in the HGTV Lodge at CMA Music Fest.

Top 20 host Nan Kelley and Thompson Square in the HGTV Lodge at CMA Music Fest.

Top 20 host Nan Kelley and Lauren Alaina in the HGTV Lodge at CMA Music Fest.

Host Suzanne Alexander hugs it out with special guest Josh Turner.

Top 20 host Nan Kelley chats backstage with Opry performer Carrie Underwood.

Top 20 host Nan Kelley chats backstage with Opry performer Kip Moore.

Top 20 host Nan Kelley chats backstage with Opry performer Little Jimmy Dickens.

Top 20 host Nan Kelley chats backstage with Opry performer Easton Corbin.

Top 20 Host Nan Kelley with special guests Lady Antebellum.

GAC host Nan Kelley with special guest Carrie Underwood on the set of Top 20 Country Countdown.

Host Nan Kelley with special guest Keith Urban.

Host Suzanne Alexander with special guests Rascal Flatts on the set of the Top 20 Countdown.

Host Nan Kelley with special guest Lionel Richie on the set of the Top 20 Countdown.

Host Nan Kelley with special guest Dierks Bentley on the set of the Top 20 Countdown.

Host Nan Kelley with special guest Casey James on the set of the Top 20 Countdown.

Host Nan Kelley with special guest Miranda Lambert on the set of the Top 20 Countdown.

Host Nan Kelley with special guest Chris Young on the set of the Top 20 Countdown.

Host Suzanne Alexander with special guest Lee Brice on the set of the Top 20 Countdown.

Host Nan Kelley with special guest Lauren Alaina on the set of the Top 20 Countdown.

Host Nan Kelley with special guests Alison Krauss and Union Station on the set of the Top 20 Countdown.

GAC host Suzanne Alexander with Alan Jackson on the set of Top 20 Country Countdown. Photo by Christopher Coward.

Suzanne Alexander with special guest Kellie Pickler on the set of the Top 20 Countdown.

Nan Kelley on the set of GAC's Top 20 with special guest Luke Bryan. Photo credit GAC staff.

Host Nan Kelley with special guest Trace Adkins on the set of the Top 20 Countdown.

Nan Kelley on the set of GAC's Top 20 with special guest Luke Bryan. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Margaret Durante. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Eric Church. Photo credit GAC staff.

Suzanne Alexander on the set of GAC's Top 20 Country Countdown with special guest Chris Young. Photo by Dominique James, GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Dolly Parton. Photo credit GAC staff.

Rodney Atkins on the set of GAC's Top 20. Photo credit GAC staff.

Suzanne Alexander on the set of GAC's Top 20 with special guests Lady Antebellum. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Sarah Darling. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Jason Aldean. Photo credit GAC staff.

Nan Kelley with Brad Paisley. Photo credit GAC staff.

Vince Gill with GAC host Nan Kelley at the 21st annual City of Hope Celebrity Softball Challenge on Saturday, June 11, 2011 at Greer Stadium in Nashville. Photo by Sara Kauss Photography.

Dierks Bentley at the 21st annual City of Hope Celebrity Softball Challenge on Saturday, June 11, 2011 at Greer Stadium in Nashville. Photo by Sara Kauss Photography.

GAC host Nan Kelley caught up with Lady Antebellum backstage at the Grand Ole Opry during their star-studded CMA Music Festival show on Tues. June 7, 2011. Photo Credit - Ricky Moson, GAC.

GAC host Nan Kelley caught up with Martina McBride backstage at the Grand Ole Opry during their star-studded CMA Music Festival show on Tues. June 7, 2011. Photo Credit - Ricky Moson, GAC.

GAC host Nan Kelley caught up with Jerrod Niemann backstage at the Grand Ole Opry during their star-studded CMA Music Festival show on Tues. June 7, 2011. Photo Credit - Ricky Moson, GAC.

GAC host Nan Kelley caught up with Darius Rucker backstage at the Grand Ole Opry during their star-studded CMA Music Festival show on Tues. June 7, 2011. Photo Credit - Ricky Moson, GAC.

Host Nan Kelley welcomes Martina McBride and her daughters Ava, Delaney and Emma to the set of GAC's Top 20 Country Countdown. Photo credit Cheryl Ecton.

Nan Kelley hugs it out with Mark Wills on the set of GAC's Top 20 Country Countdown. Photo credit Cheryl Ecton.

Nan Kelley and the Top 20 crew met up with Martina McBride at Country Thunder Arizona 2011! Photo credit GAC staff.

Nan Kelley and the Top 20 crew met up with Rodney Atkins at Country Thunder Arizona 2011! Photo credit GAC staff.

Nan Kelley and the Top 20 crew met up with Little Big Town at Country Thunder Arizona 2011! Photo credit GAC staff.

Nan Kelley and the Top 20 crew met up with The Bellamy Brothers at Country Thunder Arizona 2011! Photo credit GAC staff.

Nan Kelley and the Top 20 crew met up with Neal McCoy at Country Thunder Arizona 2011! Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guests Thompson Square. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Brett Eldredge. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Sara Evans. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Chris Young. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Trace Adkins. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with Trace Adkins and his puppet co-stars from the video for "Brown Chicken Brown Cow." Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Katie Armiger. Photo credit GAC staff.

Nan Kelley on the set of GAC's Top 20 with special guest Josh Turner. Photo credit GAC staff.

Frankie Ballard with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

The Jane Dear Girls with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Bo Bice with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Keith Urban with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Alan Jackson on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jason Aldean with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Sugarland with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Taylor Swift with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Reba McEntire with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Kenny Chesney with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Darius Rucker with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Brad Paisley with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Justin Moore with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Toby Keith with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

James Otto with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Little Big Town with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Blake Shelton with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Dierks Bentley with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jerrod Niemann with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Laura Bell Bundy with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Leann Rimes with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff.

Jason Aldean with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Julie Roberts with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Luke Bryan with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jedd Hughes and Sarah Buxton with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Eric Church with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Eric Church with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Montgomery Gentry with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jonathan Singleton with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jamey Johnson with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jack Ingram with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jack Ingram with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Emily West with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Heidi Newfield with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Eli Young Band with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Easton Corbin with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Easton Corbin with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Easton Corbin with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Bomshel with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Bomshel with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Eric Church with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Gary Allan with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Clay Walker with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Tim McGraw with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Clay Walker with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Luke Bryan with his mother, LeClaire Bryan, on the set of GAC's Top 20 Country Countdown. Photo credit: GAC staff

Luke Bryan with his mother, LeClaire Bryan, on the set of GAC's Top 20 Country Countdown. Photo credit: GAC staff.

Luke Bryan and his mother, LeClaire Bryan, with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Alan Jackson with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Lady Antebellum with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Alan Jackson with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Kellie Pickler with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Kellie Pickler on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Gary Allan with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Sarah Buxton with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff. SUPER FAN Bonus Code: Vote

Blake Shelton with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Martina McBride with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Blake Shelton with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Lady Antebellum on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Lady Antebellum on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Lady Antebellum with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Radney Foster with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Josh Turner with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

The cast of Crazy Heart with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Tim McGraw with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Bucky Covington with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jason Aldean with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jason Aldean with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Luke Bryan with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Luke Bryan with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Toby Keith with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Carrie Underwood with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Carrie Underwood with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Big Kenny with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Due West with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jack Ingram with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff.

Katie Armiger with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jimmy Wayne with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Jimmy Wayne with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff.

Dierks Bentley with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Dierks Bentley with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Brad Paisley with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Brad Paisley with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Reba with host Suzanne Alexander on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Randy Houser with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Holly Williams with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Holly Williams with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Zac Brown Band with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Zac Brown Band with host Nan Kelley on GAC's Top 20 Country Countdown. Photo credit: GAC staff

Sara Evans talks with host Nan Kelley during a taping GAC's Top 20 Country Countdown.

Dolly Parton shares a laugh with host Nan Kelley while taping GAC's Top 20 Country Countdown.

Miranda Lambert smiles big on the set of GAC's Top 20 Country Countdown.

Joe Nichols backstage on GAC's Top 20 Country Countdown with host Nan Kelley. Photo by Jenny Dew.

Randy Travis on the set of GAC's Top 20 Country Countdown with host Nan Kelley. Photo by Jenny Dew.

Alan Jackson on the set of GAC's Top 20 Country Countdown with host Nan Kelley.

Carrie Underwood and GAC Top 20 Country Countdown host Nan Kelley.

Trace Adkins drops by the set of GAC's Top 20 Country Countdown for a visit with host Nan Kelley.

Dean Sams of Lonestar checks in with GAC Top 20 Country Countdown host Nan Kelley.

The men and women of Little Big Town stop in for a chat with Nan Kelley on November 1, 2007.

Host Nan Kelley, a.k.a. "Elvira," welcomes Bucky Covington and Jason Michael Carroll to GAC's Halloween-themed Top 20 Country Countdown.

Trisha Yearwood drops by the set of GAC's Top 20 Country Countdown on October 11, 2007 for a chat with host Nan Kelley.

Trace Adkins hits the set of GAC's Top 20 Country Countdown for a chat with host Nan Kelley on October 8, 2007.

Dwight Yoakam discusses the release of Dwight Sings Buck on GAC's Top 20 Country Countdown with host Nan Kelley.

Rascal Flatts drops by the set of GAC's Top 20 Country Countdown to chat with host Nan Kelley. Photo Credit: Jenny Dew

Sara Evans and GAC Top 20 Country Countdown host Nan Kelley on September 4, 2007. Photo Credit: Cheryl Ecton

The Van Zant brothers pose with GAC's Top 20 Country Countdown host Nan Kelley. Photo Credit: Cheryl Ecton

Danielle Peck with host Nan Kelley on GAC's Top 20 Country Countdown. Photo Credit: Cheryl Ecton.

Jack Ingram gives a kiss on the head to host Nan Kelley on GAC's Top 20 Country Countdown. Photo Credit: Cheryl Ecton.

Taylor Swift poses with GAC Top 20 Country Countdown host Nan Kelley in Orange Beach, AL. Photo Credit: Cheryl Ecton

Brad Paisley and GAC Top 20 Country Countdown host Nan Kelley in Orange Beach, AL. Photo Credit: Cheryl Ecton

Rodney Atkins drops by the set of GAC's Top 20 Country Countdown with host Nan Kelley on August 29, 2006.

Taylor Swift and GAC Top 20 Country Countdown host Nan Kelley at the Bluebird Cafe in Nashville on July 24, 2007.

Hal Ketchum catches-up with GAC Top 20 Country Countdown host Nan Kelley at the Bluebird Cafe downtown Nashville.

Dierks Bentley poses with GAC Top 20 Country Countdown host Nan Kelley at the Bluebird Cafe on July 24, 2007.

Luke Bryan drops by the set of GAC's Top 20 Country Countdown and poses with host Nan Kelley. Photo Credit: Miranda Fowler

Jason Michael Carroll poses with Nan Kelley at the Detriot Hoedown on May 4, 2007. Photo Credit: Jenny Dew

Blake Shelton gets a laugh during a taping of GAC's Top 20 Country Countdown on April 17, 2007.

Kellie Pickler poses with GAC Top 20 Country Countdown host Nan Kelley on October 10, 2006.

Bucky Covington with host Nan Kelley on GAC's Top 20 Country Countdown. Photo Credit: Cheryl Ecton

Jason Michael Carroll stops by the set of GAC's Top 20 Country Countdown with host Nan Kelley on March 23, 2007.

The men of Emerson Drive pose for a picture with GAC Top 20 Country Countdown host Nan Kelley on February 20, 2007.

Craig Morgan drops by the set of GAC's Top 20 Country Countdown with host Nan Kelley on July 31, 2007. Photo Credit: Cheryl Ecton

Troy and Eddie of Montgomery Gentry pose for a picture with GAC Top 20 Country Countdown host Nan Kelley.

Trent Tomlinson drops by the set of GAC's Top 20 Country Countdown and poses for a picture with host Nan Kelley on November 7, 2006.

The men of Heartland pose for a picture with GAC Top 20 Country Countdown host Nan Kelley on October 31, 2006.

John Rich poses for a picture with GAC Top 20 Country Countdown host Nan Kelley. Photo Credit: Jenny Dew

Darrell Waltrip and Jason Michael Carroll drop by the set of GAC's Top 20 Country Countdown.

Jewel on the set of GAC's Top 20 Country Countdown with host Nan Kelley.

Whitney Duncan and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Taylor Swift and GAC host Nan Kelley on the set of GAC's Top 20 Country Countdown. Photo by GAC Staff

Taylor Swift filming GAC's Top 20 at Nashville's legendary Bluebird Cafe.
Photo by Wendy Newcomer

Julianne Hough dances with host Nan Kelley on set of GAC's Top 20 Country Countdown. Photo by Jason Mease

GAC host Nan Kelley interviews Little Big Town.

Jimmy Wayne gets silly with host Suzanne Alexander on the set of GAC's Top 20 Country Countdown. Photo by Jenny Dew. Superfan Bonus Code: Attraction

Blake Shelton and GAC host Suzanne Alexander on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

GAC host Nan Kelley welcomes Dierks Bentley to the set of Top 20 Country Countdown. Photo by Cheryl Ecton.

Blake Shelton on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Blake Shelton on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Blake Shelton on the Top 20 Country Countdown set with host Nan Kelley.

Jimmy Wayne clowns around with GAC's Top 20 Country Countdown host Nan Kelley. Photo by Cheryl Ecton.

Keith Urban and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Zac Brown Band performs on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Jake Owen and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Billy Currington stopped by the Top 20 Country Countdown set to chat with host Nan Kelley.

Brad Paisley and host Nan Kelley on GAC's Top 20 Countdown. Photo Courtesy of GAC Staff.

Brad Paisley and host Nan Kelley on GAC's Top 20 Countdown. Photo Courtesy of GAC Staff.

Trace Adkins and host Nan Kelley on GAC's Top 20 Countdown. Photo Courtesy of GAC Staff.

Emerson Drive with host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Lady Antebellum with host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Blake Shelton with host Suzanne Alexander on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

GAC's Top 20 Country Countdown host Nan Kelley with John Rich. Photo by Cheryl Ecton.

Jason Aldean with host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Martina McBride with host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Jason Meadows with host Suzanne Alexander on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Eric Church with host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

GAC host Nan Kelley chats with Rascal Flatts on the set of Top 20 Country Countdown.

Lady Antebellum and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Josh Turner and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Trisha Yearwood and host Suzanne Alexander on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Dierks Bentley and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Julianne Hough visits with host Nan Kelley on set of GAC's Top 20 Country Countdown. Photo by Jason Mease

Sarah Darling with host Nan Kelley on the set of Top 20 Country Countdown. Photo courtesy of GAC staff.

Sugarland stops by the set of GAC's Top 20 Country Countdown to visit with host Nan Kelley. Photo credit: GAC Staff.

Keith Anderson and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Kellie Pickler and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Jamey Johnson and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Randy Houser hangs out on the set of GAC's Top 20 Country Countdown with host Nan Kelley.

Taylor Swift and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Jason Michael Carroll, Sarah Evans and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Kristy Lee Cook and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

John Rich and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.

Jimmy Wayne and host Nan Kelley on GAC's Top 20 Countdown. Photo courtesy of GAC staff.