Katy Perry Judge Luke Bryan Judge Lionel Richie Judge Ryan Seacrest Host Gabby Barrett Guest Jordin Sparks Guest Carrie Underwood Self Bebe Rexha Guest will.i.am Guest David Cook Guest Scotty McCreery Music Performer Lauren Alaina Guest Ruben Studdard Guest Michael Bublé Music Performer Kris Allen Music Performer Lee DeWyze Guest Melissa Etheridge Music Performer Laine Hardy Music Performer Ben Platt Music Performer Laci Kaye Booth Music Performer Trish Kinane Executive Producer Jennifer Mullin Executive Producer Simon Fuller Executive Producer Ken Warwick Executive Producer