Alex Newell

Grammy Award-Winning Actor & Singer Known for "Glee"

American Authors

Indie Rock Band; Known for "Best Day Of My Life"

Andy Grammer

Platinum-Selling Singer-Songwriter Known for "Honey, I'm Good" & "Fine By Me"

Angel Haze

Rapper and Lyricist; Featured Artist for XXL Magazine's Freshman Class of 2013

Arlo Guthrie

Legendary Folk Singer, Actor and Humanitarian

Ashley Tisdale

Actress, Singer & Producer

Ben Vereen

Tony Award-Winning Entertainer

Bret Michaels

Singer-Songwriter, Musician & Reality Television Personality

Bret Michaels and Sammy Hagar Perform "Every Rose Has Its Thorn" by Poison

Bruno Mars

Grammy Award-Winning Singer-Songwriter & Record Producer

Chad Hugo

Grammy Award-Winning American Record Producer, Multi-Instrumentalist, Singer & Songwriter

Charli XCX

British Singer-Songwriter

10 Things Charli XCX Can’t Live Without | 10 Essentials

Chase Rice

Country Singer-Songwriter

Christina Milian

Television Personality, Host, R&B Singer-Songwriter and Actress

Cody Simpson

Australian Singer, Songwriter

Colbie Caillat

Two-time Grammy Winning Singer Known for "Bubbly"

Common

Award-Winning Artist, Actor, Producer, Musician & Writer

Dan + Shay

Grammy Award-Winning Country Music Duo Known for "Speechless" & "Tequila"

Demi Lovato

Grammy Nominated Singer-Songwriter, Actress, Philanthropist & Mental Health Advocate

Dia Frampton

Runner-Up on Season 1 of "The Voice"

Frenchie Davis

Broadway Performer; Soul & Pop Singer