Scroll down to see what songs these stars would have on their playlists.
quicklist:1 title:Luke Bryan and Darius Rucker's Pick: Kenny Rogers, 'The Gambler' media:26520319 caption:use text:When country music star Luke Bryan was just a kid growing up on his family's peanut farm in Leesburg, Ga., he said he used to love singing with a hairbrush, pretending it was a microphone.
"I just remember being a kid, running around my room in my pajamas with a hairbrush, singing and having fun ... like a kid should do with music," Bryan said.
And one of his favorite songs to rock out to was Kenny Rogers' "The Gambler."
"Kenny Rogers was just the man," Bryan said. "Nobody was cooler, nobody was smoother, nobody has it figured out quite like Kenny Rogers did."
"I don't think I would be sitting here if it wasn't for Kenny Rogers," the "Wagon Wheel" singer said. "Kenny Rogers was that guy. Kenny Rogers and "Hee Haw," when I was a real young kid were the people that really piqued my ears and made me go, 'I want to hear more of that.'"
Like Bryan, Rucker said he probably listened to Rogers' 1978 album, "The Gambler," "thousands of times over the years" and fell in love with the album's title song.
"I remember being a little kid flipping through radio stations, just hoping I could find, 'The Gambler,'" Rucker said. "It's about as perfect as a country song gets."
But when they're on the road, the duo's favorite song to cover is an old Garth Brooks staple, "Friends in Low Places."
"That's a drinking party country music anthem," Kelley said. "We haven't really played many covers. When we got going, we just kind of started writing our songs and playing them out, but if we ever had to throw a cover in, you bet it was 'Friends in Low Places' because everybody knows it."
"You basically don't have to sing on that song when you play, 'Friends in Low Places,'" Hubbard added.
"'Stand,' Rascal Flatts, how many times did I blare that song in my car with the sunroof open?" Hayes said. "Just going, 'you know what, I just need to feel this, crank it,' you know? It's as if somebody on the other end of the song is singing it with you because they've been through it and they relate to it."
Hayes said another one of his favorites is "Jesus Take the Wheel," one of Carrie Underwood's hit singles.
"'Jesus Take the Wheel' is one of those songs that you crank up and you sing along with because you feel that in that moment," Hayes said. "They paint the picture, they bring you this real story, this real thing ... and you feel things that some songs just can't make you feel quite that much."
"I Will Always Love You" became the anthem of Houston's career and is still the best-selling single of all time by a female artist.
Kimberly Perry, the lead singer in the award-winning country group, The Band Perry, says it's one of her favorites.
"I think [it] is one of the most special songs to ever come out of country music," Perry said. "One thing that makes it so special is that it's absolutely timeless, and it's genre-less, if that's even a word.
"For Whitney to have done a pop cover of that and to do it as beautifully as Dolly did originally, that to me is what's special about country music," she added.