John P. Kotter

Leadership & Change Management Guru

George Foreman

World Boxing Champion & Entrepreneur

Ruby Rose

Australian Model, DJ, Actress & TV Presenter; Known for "Batwoman" & "Orange is the New Black"

Mark Wahlberg

Actor, Producer & Philanthropist

Dr. Dean Ornish

Physician, Leading Researcher in Healthcare, Founder of the Preventive Medicine Research Institute & Bestselling Author

Kurt Warner

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

Dr. Phil McGraw

"Dr. Phil" Host, NY Times Bestselling Author, Psychologist

Sarah Silverman

Stand-Up Comedian, Actress, Singer, Producer & Writer

Alonzo Mourning

Naismith Memorial Basketball Hall of Fame Inductee; Co-Founder of Mourning Family Foundation

Marie Osmond

Singer, Host, TV Personality & Author of "Behind The Smile: My Journey Out of Postpartum Depression"

Eva Mendes

Actress; Six-Time ALMA Award Nominee; International Spokeswoman for Revlon Cosmetics

Dusty Baker

Former MLB Outfielder; Manager of the Houston Astros

Sarah Ferguson

The Duchess of York, Philanthropist, Author and Advocate

Dan Heath

Bestselling Author, Senior Fellow at Duke University’s CASE Center & Co-Founder of Thinkwell

Bob Greene

Exercise Guru & Best-Selling Author

Tom Brady

Former Quarterback for the New England Patriots & Tampa Bay Buccaneers; Seven Time Super Bowl Winner

Eric Ripert

Chef, Author & Host of "Avec Eric"

Vernice "FlyGirl" Armour

America’s First Black Female Combat Pilot, Former Marine & Cop; Author of "Zero to Breakthrough”

Creating the Breakthrough

Macklemore & Ryan Lewis

Hip Hop Duo; Known For "Thrift Shop"

Chrissy Teigen

Model, Author & Television Personality