The top three finalists will each take the stage one last time to perform in hopes of securing America’s vote and, ultimately, become this season’s winner. In addition to the finalists, Idol’s all-star celebrity judges Luke Bryan, Katy Perry and Lionel Richie will each perform a hit song during the show. Plus, the rest of the top nine return to join renowned music artists Lindsey Buckingham, Alessia Cara, Luke Combs, Sheryl Crow, Fall Out Boy, Mickey Guyton, Chaka Khan, Leona Lewis and Macklemore on the Idol stage for unforgettable performances throughout the show. Tune in for additional surprise guests and familiar faces. Voting for the next “American Idol” starts at the beginning of the episode and will be open throughout the live show.