 There were a number of other major changes in season ten, from the judges to the format of the show itself including the opening intro, which used the "Hall of Idols".Nigel Lythgoe returned as the executive producer, and Ray Chew has been hired as the show's new musical director, replacing Rickey Minor, who left the show along with vocal coach Dorian Holley to become the musical director of "The Tonight Show with Jay Leno".Peisha McPhee, mother of season 5's runner-up Katharine McPhee, joined as one of the vocal coaches.