Katy Perry Judge Luke Bryan Judge Lionel Richie Judge Ryan Seacrest Host Luis Fonsi Music Performer Bishop Briggs Music Performer Andy Grammer Music Performer Allen Stone Music Performer Aloe Blacc Music Performer Sugarland Music Performer Pat Monahan Music Performer Brandon Diaz Contestant Cade Foehner Contestant Catie Turner Contestant Dennis Lorenzo Contestant Dominique Posey Contestant Gabby Barrett Contestant Jonny Brenns Contestant Kay Kay Alexis Contestant Layla Spring Contestant Michael J. Woodard Contestant Michelle Sussett Contestant Trevor McBane Contestant Ada Vox Contestant Alyssa Raghu Contestant Amelia Hammer Harris Contestant Caleb Lee Hutchinson Contestant Effie Passero Contestant Garrett Jacobs Contestant Jurnee Contestant Maddie Poppe Contestant Mara Justine Contestant Marcio Donaldson Contestant Ron Bultongez Contestant Shannon O'Hara Contestant Trish Kinane Executive Producer Jennifer Mullin Executive Producer