KATY Perry's final show of American Idol has arrived and she admitted that she is in her feelings about it. The singer has been a judge on the show for seven seasons on ABC, alongside Lionel Richie and Luke Bryan . The three-hour finale is airing on Sunday and the show will say goodbye to Katy , 39.

The American Idol judge opened up about what her emotions will be in a new interview with KABC . "I think I will be crying at anything," Katy told the outlet. "It's been a beautiful journey and I love watching these kids grow and becoming this big beautiful patchwork quilt.

" She also said that she thinks the top three - Will Moseley , Jack Blocker , and Abi Carter - are all deserving and are "ready to go." Luke, 47, added that it will be an emotional night because they've developed a close friendship. Lionel, 74, said that Katy leaving will be "frightening and sad.

" "But at the same time ...

hang on to your seat! She has a roar, about herself, no pun intended," he said. Host Ryan Seacrest said that Katy will take the stage and it will "be a moment." "It will be especially significant being her last performance," Ryan , 49, told the outlet.

Katy first revealed that she was leaving Idol in February. She appeared on Jimmy Kimmel Live! and made the shocking annoucement. "This fall, in September, I'm going to be doing this huge music festival in Brazil called Rock in Rio," the mother-of-one said.

"So I think this will probably be my last season for Idol." I think I will be crying at ev.