Derek Hough

Dancer, NYT Bestselling Author, Emmy Award Winner for Outstanding Choreography & Six-Time Champion of ABC's "Dancing with the Stars"

Tony Horton

Fitness Expert & Founder of Fitness Program P90X

Crush It!: The Revolutionary Fitness Plan for All Levels That Burns Fat, Builds Muscle,...

Lou Ferrigno

Actor Best Known For His Role as The Hulk; Fitness Trainer/Consultant and Retired Professional Bodybuilder

Dwayne "The Rock" Johnson

Actor, Former WWE Wrestler & New York Times Best-Selling Author of "The Rock Says..."

Donald Driver

NFL Super Bowl Champion, Children's Author, "Dancing With the Stars" Winner & Family Man

Ozzie Smith

15-Time MLB All-Star & National Baseball Hall of Fame Inductee; Former Shortstop for the San Diego Padres & St. Louis Cardinals

Carli Lloyd

Former U.S. Women's Soccer Team Midfielder, Two-time Olympic Gold Medalist, Two-time FIFA Player of the Year & World Cup Champion

David Zinczenko

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

Pau Gasol

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

Hank Baskett

Former NFL Wide Receiver

Matt Leinart

FOX Sports 1 College Football Analyst; Former American Football Quarterback

Tony Little

Personal Trainer & Fitness Personality; Known as America's Personal Trainer

Kacy Catanzaro

Gymnast, First Woman to Qualify for Television Show "American Ninja Warrior"

Torrie Wilson

Athlete, Entrepreneur, Fitness Expert, Model, Spokesperson & WWE Hall of Famer

Mike Feerick

Founder & CEO of ALISON Founder; and Chairperson of Ireland Reaching Out (Ireland XO)

Tara Stiles

Founder of Strala Yoga, Author

Rich Froning

CrossFit Athlete, Coach & Christian Speaker

Tim Grover

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

Phil Heath

2012 Mr. Olympia

Jenny Evans

Stress Resiliency Expert, Speaker & Author