'American Idol': Arthur Gunn returns, Katy Perry becomes Tinker Bell
Caleb Kennedy stuck to his rugged, country wheelhouse, singing "Real Gone" from "Cars." Channeling her inner Tinker Bell, Perry told the 16-year-old high school student that "this thing is really Peter Pan-ing out for you." "You’ve got real-life fire on the stage," she continued. "Every time you engage us, we lean in." Richie said Kennedy's energy is "what performing is all about." "It has to radiate off the stage, and that was a radiating performance," he added. Willie Spence Willie Spence, 21, put his powerful voice to use on a rousing performance of "Circle of Life" from "The Lion Kin...