Byu Men'S Chorus Byu Vocal Point Mormon Tabernacle Choir Mckay Crockett Voiceplay Gilles Vigneault City Of Enoch Elenyi Claire Ryann Benjamin Grosvenor One Voice Gentri The Whiffenpoofs Phineas And Ferb Rob Gardner Home Free Royal Philharmonic Orchestra Erin Bode Tenebre Chris Mann Tim Janis The Tenors Axis Of Awesome The Barden Bellas Canadian Tenors Elaine Paige The Swingles Deep Space Network On The Rocks The Wishing Well Neri Per Caso Andrew Peterson Naruto Here Come The Mummies The Real Group Adiemus Street Corner Symphony Blood Sweat Tears Laboum London Symphony Orchestra Josh Groban Adrian Von Ziegler Kenny Loggins Claudia Montero Croce Burt Bacharach Bread Coeur De Pirate Pentatonix