Katy Perry, Lionel Richie, Luke Bryan & Ryan Seacrest Celebrate the 20th Season of 'American Idol'!

American Idol judges Katy Perry, Lionel Richie and Luke Bryan are toasting the 20th season of the show!

The trio celebrated the show’s fifth season on ABC and the 20th season overall with a special cake-cutting event in Los Angeles on Sunday (October 17).

Click inside to see all the photos…

They were joined by host Ryan Seacrest as well as the show’s executive producers, president of Hulu Originals and ABC Entertainment Craig Erwich and executive VP of unscripted and alternative entertainment at Walt Disney Television Rob Mills.

Katy, Lionel and Luke have been hosts on the show since it began airing on ABC in 2018, while Ryan has been hosting the show since it’s premiere in 2002.

Find out how much they were all paid in 2021 to continue their work on American Idol…