Dominique Dawes

Three-time Olympian, Olympic Gold Medalist, Healthy Lifestyle Advocate and Gymnastics Academy Owner

Gabby Douglas

First African-American to Win Olympic Gold Medal for Gymnastics; Author of New York Times Bestseller "Grace, Gold & Glory: My Leap of Faith"

Tunde Oyeneyin

Peloton Instructor & Makeup Artist; Founder of SPEAK Instagram Live Series

Bakari Sellers

Author, Attorney, Political Commentator & Youngest African American Elected Official in the U.S.

Jillian Michaels

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

Dr. Jennifer Ashton

Board-Certified Ob-Gyn, Author & TV Medical Correspondent

Dr. Mikhail Varshavski

Known as "Doctor Mike;" Leading Medical Media Voice Who Communicates the Value of Preventive Medicine

Joy Bauer

Nutrition and Health Expert on NBC's "Today Show" & Founder of Nourish Snacks

Richard Simmons

Fitness Instructor, Actor, Video Producer Known for "Sweatin' to the Oldies" Aerobics Videos

Sunny Anderson

Co-Host, Food Network's "The Kitchen"

David Zinczenko

Founder & CEO of Galvanized; Former Vice President of Men's Health, Women's Health & Prevention; Retired Nutrition & Wellness Editor at ABC News

Randy Jackson

Music Producer, Former "American Idol" Judge, Author & Health Advocate

Pau Gasol

NBA Power Forward, Two-Time NBA Championship Winner, UNICEF Ambassador

Dr. Michael Roizen

Chief Wellness Officer at the Cleveland Clinic & Co-Founder of RealAge; Anesthesiologist & Former FDA Advisory Committee Chair

Kendall Toole

Peloton Instructor & Fitness Influencer; Content Expert; Mental Health Advocate

Partha Nandi

CEO & Creator of "Ask Dr Nandi" & International Best Selling Author

Mark Hyman

New York Times Bestselling Author & Healthcare Expert

Young Forever: The Emerging Science of Longevity | Summit Palm Desert

Richard Sherman

Former All-Pro NFL Cornerback; NFL Analyst & Commentator; Co-host of 'Undisputed'

Ruben Studdard

American Idol Winner; The Biggest Loser Contestant; Dubbed the "Velvet Teddy Bear"

Keri Hilson

Singer, Songwriter & Actress; Known for "Knock You Down" and "Pretty Girl Rock"