The 'Idol' judges and past winners came together for a star-studded performance on the song's 35th anniversary.
See which of the final contestants took home the victory Sunday night.
The songstress and 'Idol' judge performed the emotional new tune on Sunday's finale.
The 'Idol' judge took to Facebook Live to talk with fans about the show's big season finale and crowning a new winner.
The expectant singer also opened up about how she's 'always felt very mothering' during Sunday's show.
ET's Rachel Smith spoke with the 'ldol' judge, who gave some insight into what fans might see her wearing next week.
The singer and judge showed off yet another elaborate costume during Sunday's remote episode of 'Idol.'
The mom-to-be opened up to fans in a Facebook Live chat on Sunday.
ET chatted with the judges of 'American Idol,' Katy Perry, Luke Bryan and Lionel Richie, about the show's new, remote episodes.
'AGT,' 'Idol' and 'The Voice' are making major changes to their shows so the competitions can continue moving forward.
For the show's first remote episode, Perry made sure to rock a truly unusual outfit.
The singer and 'Idol' judge broke down how the show will work with everyone filming their parts from home.
'It's coming in handy for this Sunday!'
The top 20 will compete for America's vote remotely starting April 26.
