John Legend

EGOT Winning Musician, Producer & Philantropist

Lisa Leslie

WNBA Champion, Olympic Gold Medalist & Author of "Don't Let the Lipstick Fool You;" Coach of Ice-Cube's BIG3 Basketball League

Montel Williams

Emmy Award-Winning Talk Show Host; Multiple Sclerosis Survivor; Health Equity & Veteran Advocate

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Earvin “Magic” Johnson

Basketball Hall of Famer, Entrepreneur, Philanthropist & Motivational Speaker

Amy Purdy

Former "Dancing with the Stars" Contestant & Paralympic Professional Snowboarder

Rita Moreno

Award-Winning Actress, Dancer, Singer; Health Advocate & New York Times Bestselling Author

Daphne Oz

Emmy Award-winning Television Host, New York Times Bestselling Author, Chef & Entrepreneur

Dr. Jill Bolte Taylor

Scientist, Author & CEO of My Stroke of Insight, Inc.

Shawn Achor

Harvard Professor, Researcher, Positive Psychology Expert, Author of "The Happiness Advantage" & "Big Potential"

Alan Alda

Actor; Writer; Science Advocate; Director

Andie MacDowell

Film Actress

Henry Winkler

Actor, Producer, Director & Best-Selling Author; Best Known for "Happy Days"

Andy Cohen

Emmy Award-Winning Host & Producer of Bravo’s "Watch What Happens: Live"

Andy Cohen reacts to his infamous New Year’s Eve rant

Herschel Walker

Former NFL Running Back, 1982 Heisman Trophy Winner & Mental Health Awareness Advocate

Shaquille O'Neal

15-Time NBA All-Star Player, Media Personality, Entrepreneur & Philanthropist

Nia Long

NAACP Image Award-Winning Television & Film Actress, Philanthropist

Natasha Lyonne

Emmy Nominated Actress; Known for "American Pie," "Orange Is the New Black" & "Russian Doll"

Tim Grover

CEO of Attack Athletics, Best-selling Author of "Relentless" and "Jump Attack"

Venus Williams

Professional Tennis Player, Four-Time Olympic Gold Medalist, Equal Pay Activist, Author & Entrepreneur