Kathy Bates

Academy Award-Winning Actress; Cancer Survivor & Chairperson for the Lymphatic Education & Research Network

Martina Navratilova

Retired World #1 Tennis Player, International Tennis Hall of Famer, Gay Rights Activist & Author

David Robinson

Former NBA Center for the San Antonio Spurs & Philanthropist

Julie Andrews

Singer, Actress, Author & Humanitarian

Kelly Osbourne

Fashion Designer, Singer & Actress; Former Contributor to E!'s "Fashion Police"; Daughter of Ozzy and Sharon Osbourne

Colbie Caillat

Two-time Grammy Winning Singer Known for "Bubbly"

Brittany Snow

Actress, Producer, Director, Singer & Co-Founder of Love Is Louder

Ashleigh Banfield

Emmy-Award Winning Journalist & War Correspondent; Host of Popular TV Program "Disorder in the Court"

Bret Michaels

Singer-Songwriter, Musician & Reality Television Personality

Sugar Ray Leonard

Legendary Sports Icon, Olympic Champion and Hall of Famer, Philanthropist, Bestselling Author & Television Personality

Dan + Shay

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

Paula Abdul

American Singer-Songwriter, Dancer, Choreographer & TV Personality

Raven Symone

Actress & Singer Known for "That's So Raven"

Kathleen Madigan

Comedian, Podcaster & Host on SIRIUS XM's Blue Collar Radio

Aubrey Plaza

Actress, Comedian & Producer Known for NBC's "Parks and Recreation"

Natalie Portman

Award-Winning Actress Known for "Black Swan," "V for Vendetta" & Playing Padmé Amidala in the Star Wars Prequel Trilogy

Natalie Portman on self-confidence and performing from an early ...

Scott "Scooter" Braun

Founder of SB Projects

Chase Rice

Country Singer-Songwriter

Christina Milian

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

John Cena

WWE Professional Wrestler, Bodybuilder, and Actor Known for "Trainwreck"