See What Katy Perry Wore for the 'American Idol' Finale & Watch Every Judge's Performance!

Katy Perry gave us two fierce looks during the season finale of American Idol! The 36-year-old singer was joined on stage by fellow judges Luke Bryan and Lionel Richie during the finale on Sunday (May 23) in Los Angeles. All three of the judges took to the stage to perform duets with contestants during the [...]