Katy Perry revealed on "Jimmy Kimmel Live!" that she still keeps in touch with her former "American Idol" co-judges Luke Bryan and Lionel Richie. Despite leaving the show last year, Perry expressed missing her colleagues and confirmed they still reach out to her. She also mentioned that Carrie Underwood will be joining the judging panel for the upcoming season, and Perry encouraged viewers to watch the show, which premieres on March 9 on ABC. Perry left "American Idol" after seven seasons to focus on her "Lifetimes" tour, and Underwood was announced as her replacement.