At any given time, thousands of musicians are vying for a glimmer of success. For most, just one hit record would fulfill a lifetime of dreams — which makes Diamond Rio's accomplishments that much more significant.

Fifteen years ago, they too were hoping for that one hit. When the band released their debut single, "Meet In The Middle," they kept their fingers crossed that it would reach country music's Top 20 — maybe even the Top 10.

But the song went all the way to No. 1, making them the first country group in history to top the chart with a debut single. They followed up with enough successive hits to warrant a Greatest Hits album and now, 15 years into their career, Diamond Rio has taken that trip up the national charts so many more times that the band has recorded Greatest Hits II, a landmark that seems almost insane when the band reflects on the odds.