Katy Perry chats with ET's Denny Directo on the red carpet for 'American Idol,' which airs Sundays and Mondays on ABC.
Katy Perry dressed as Cinderella for Disney night on Sunday's 'American Idol.'
Luke Bryan, Katy Perry, Lionel Richie and Ryan Seacrest put their friendship on the line in this sweet 'American Idol' teaser.
Katy Perry, Lionel Richie and Luke Bryan perform a Disney classic. 'American Idol' airs Sundays and Mondays on ABC.
The singer shared the reason she skipped the event in an Instagram post Monday evening.
Katy Perry chats with ET’s Denny Directo backstage at ‘American Idol,’ which airs Sundays on ABC.
The longtime host spoke with ET on the 'Idol' carpet in Los Angeles on Sunday after 'Adele' night.
ET was with Katy Perry on the carpet for ‘American Idol,’ where she revealed her thoughts on fans' comments about her new hair.
Katy Perry appeared on Monday's live episode of 'American Idol,' which proved to be an emotionally draining experience.
Fellow 'American Idol' alums reunited to perform one of the late singer's favorite songs.
Former 'American Idol' finalists honor the late Mandisa with a touching tribute performance on Monday's episode, which aired on ABC.
The singer and actress revealed to ET how she feels about the idea of returning home to the show she won exactly 20 years ago.
Fantasia Barrino chats with ET's Rachel Smith at the TIME 100 Gala in New York City.
