2 Stars Will Replace Katy Perry & Lionel Richie on 'American Idol' When They Leave for Coronation - Find Out Who!

Ed Sheeran and Alanis Morissette to Step in for ‘American Idol’ Judges Katy Perry and Lionel Richie

American Idol judge shake-up: Two popular singers temporarily replace Katy Perry and Lionel Richie

Ed Sheeran, Alanis Morissette Subbing for Katy Perry, Lionel Richie on ‘American Idol’ as Guest Judges