John Legend

EGOT Winning Musician, Producer & Philantropist

Amy Purdy

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

Dan Ariely

Behavioral Economist; Professor at Duke University; Author; Founding Member of The Center for Advanced Hindsight

Michelle Obama

Former First Lady of the United States & Bestselling Author

Oprah Winfrey

CEO of Oprah Winfrey Network, Presidential Medal of Freedom Recipient & National Women's Hall of Famer

Oprah Winfrey: Broken Open | Oprah's Super Soul | OWN Podcasts ...

Ashton Kutcher

Actor, Producer, Investor & Activist

Steve Harvey

TV Personality & Host of "Family Feud"

Tim Tebow

ESPN College Football Analyst; Heisman Trophy Winner; Former Quarterback for NFL's Denver Broncos & Baseball Outfielder for the New York Mets

Pharrell Williams

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

Jane Lynch

Emmy Award-Winning Actress, Known for "Glee" and Hosting "Hollywood Game Night"

Nick Vujicic

Motivational Speaker, NY Times Best-Selling Author, Founder & CEO of Life Without Limbs

Dan Marino

Pro Football Hall of Famer, Business Owner & Founder of the Dan Marino Foundation for Improving The Lives of Those on the Autism Spectrum

John Elway

Hall of Fame NFL Legend; Executive VP of Football Operations for the Denver Broncos

Kurt Warner

Super Bowl Champion Quarterback and Two-Time NFL MVP; Adoption Advocate

Priyanka Chopra Jonas

Award-Winning Actress, Producer & Humanitarian

Priyanka Chopra Jonas Takes a Lie Detector Test | Vanity Fair

Brandon Marshall

Former NFL Pro Bowler, TV Personality, Mental Health Advocate, Founder, Host of I AM Athlete & CEO of House of Athlete

Kelly Slater

Professional Surfer Crowned ASP World Champion a Record 11 Times, Spokesperson for Suicide Prevention & Awareness

Kelly Slater Talks Surfing at 50: 'There's Always Another Wave'

Vivek Ranadivé

Chairman, CEO & Governor of the Sacramento Kings; Entrepreneur and Technology Visionary

Larry Fitzgerald

Philanthropist, Business Owner, Investor & Former Wide Receiver for the National Football League

Brad Keselowski

Championship NASCAR Driver, Owner of Keselowski Advanced Manufacturing (KAM) & President of Checkered Flag Foundation