Katy Perry

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).

A few well-known names are headed to space.

A source says Underwood was not producers' first choice.

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.

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

Country icon Dolly Parton will join pop star Katy Perry for a truly unique performance at the upcoming ACM Awards on April 3.