Carrie Underwood and Bo Bice were competing against each other in Season 4 of American Idol, but they were also IRL friends.

Backstreet Boys and Rascal Flatts capped off the 60th Academy of Country Music Awards with a collaborative performance that celebrated singing in perfect harmony, whether country or pop. Members of ...

Backstreet Boys and Rascal Flatts capped off the 60th Academy of Country Music Awards with a collaborative performance that celebrated singing in perfect harmony, whether country or pop.

DeMarcus and Rascal Flatts wrapped up their 25th anniversary Life is a Highway tour in April. A few days ago they lit up the ...

When the Backstreet Boys floated into sold-out arenas on hoverboards during 1999's Into the Millennium tour, it became a ...

But it was the subsequent seasons, overseen by Sean “Diddy” Combs, that most people associate with the franchise. “Making the ...