Jeffrey Tambor

Emmy Award-Winning Actor of "Arrested Development," "The Hangover" & "Transparent"

Mark Spitz

Legendary Olympic Swimmer; Third Athlete to Win Nine Olympic Gold Medals

Mark Spitz on the 1972 Olympic Games in Munich

Diane Sawyer

Anchor, ABC World News

Tim Sanders

Bestselling Author, Technology Pioneer, Expert on Collaboration & Relationships

David Robinson

Former NBA Center for the San Antonio Spurs & Philanthropist

Jillian Michaels

Leading Fitness Expert, Certified Nutritionist, Renowned Life Coach & Powerful Entrepreneur

Maria Menounos

CEO & Co-founder of AfterBuzz TV; Former E! News Co-Anchor; Best-selling Author, Journalist & Type-1 Diabetic

Tim Meadows

Actor & Comedian; Known for "Saturday Night Live"

Ronnie Lott

Former Professional Football Player

Nastia Liukin

Olympic Gold Medal Gymnast

Sugar Ray Leonard

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

Ashleigh Banfield

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

Paula Abdul

American Singer-Songwriter, Dancer, Choreographer & TV Personality