On Thursday night’s bonus episode of The Voice, a 13-year-old singer shocked the coaches with his powerful voice. The surprising moment came about when tween Quizz Swanigan took the stage and performed an impressive version of “Who’s Lovin’ You” by The Jackson 5, causing both Gwen Stefani and Alicia Keys to turn. While Quizz admitted that Gwen taught him “how to spell bananas” via her song “Hollaback Girl,” he ultimately chose Alicia as his coach. The night also saw Blake pick up country artists Ashley Levin and Casi Joy. Ashley earned her spot with a sweet cover of Patty Griffin’s “Let It Fly” and Casi got a four-chair-turn for her classic take on “Blue” by LeAnn Rimes.