Katy Perry

Was Carrie Underwood mocking Katy Perry when she said she'd never travel to space?

Luke Bryan admits he watched with great interest when his former American Idol co-worker, Katy Perry, was shot into space on Monday (April 14).

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

Luke Bryan discusses Katy Perry's exit from American Idol, highlighting their ongoing and growing friendship.

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."