Katy Perry

Surely that's not Luke's fault ... right?

After viewers criticized Katy Perry's comments, the contestant offered her perspective on social media.

He's the resident country expert on 'American Idol.'

Host Ryan Seacrest will also return for Season 21.

From Katy Perry to Justin Bieber, here are some of the biggest names who have had beef with pop star Taylor Swift.

Swift is the top-earning celebrity this year!

Dolly Parton is the QUEEN!

It was one of the hands-down highlights of the night.

Kacey Musgraves joined Katy Perry on her 'Witness' album livestream to teach the pop star how to play "Follow Your Arrow."

Two minutes ago, I'd never heard of Rosenberg, Texas. Now, I have an unstoppable urge to speed through their town so I just might be pulled over by these hilarious cops from Rosenberg Police Department doing the best Katy Perry "Dark Horse" lip dub ever. EVER.

The next CMT Crossroads episode will not air until June 13th, but we've got a sneak preview of what's to come when Katy Perry and Kacey Musgraves share the stage for this musical event.

June 13th. That's when you can catch the highly anticipated premiere of the CMT Crossroads episode, featuring country music's newest sweetheart / Grammy winner, Kacey Musgraves and Pop queen, Katy Perry. But guess what? We've got a sneak peak for you today.