will.i.am

Grammy Award-Winning Musician & Founding Member of The Black Eyed Peas; Creative Innovator, STEM Education Advocate, CEO & Founder of FYI.AI; President of the i.am Angel Foundation

Andy Grammer

Singer-Songwriter, Record Producer, Mental Health Advocate

Dan + Shay

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

Bruno Mars

Grammy Award-Winning Singer-Songwriter & Record Producer

Demi Lovato

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

Journey

Quintessential 1980's Rock Band

Charli XCX

British Singer-Songwriter

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

G-Eazy

Rapper, Songwriter & Producer

Martina McBride

Country Singer-Songwriter & Philanthropist

Pharrell Williams

Singer-Songwriter, Producer & Entrepreneur; Known for the Hit Single, "Happy"

Common

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

Chase Rice

Country Singer-Songwriter

Sara Bareilles

Singer-Songwriter, Actress, Author & Philanthropist; Known for "Love Song" & "Brave"

Sara Bareilles Reveals Her Favorite Broadway Star | WWHL

Olivia Holt

Actress & Singer; Known for "Cruel Summer" & "Kickin' It"

Kellie Pickler

Country Music Artist, American Idol Alum, "Dancing with the Stars" Winner & Host of Daytime Talk Show "Pickler & Ben"

Colbie Caillat

Two-time Grammy Winning Singer Known for "Bubbly"

Bret Michaels

Singer-Songwriter, Musician & Reality Television Personality

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

Cody Simpson

Australian Singer-Songwriter Known for "La Da Dee," "Pretty Brown Eyes" & "IYiYi"; Author, "Prince Neptune"; Competitive Swimmer

Head Above Water | Interview | Cody Simpson

Ashley Tisdale

Actress, Singer & Producer

American Authors

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