Matthew Hussey

New York Times Bestselling Author, Podcaster, Confidence Coach & Resident Love Expert on The Today Show

Roy Choi

Co-Host of "The Chef Show;" Chef & Co-Founder of Kogi BBQ; Best-Selling Author

Bassem Youssef

Egyptian Comedian, Host of the "The Program" & Cardiac Surgeon

Tom Papa

Comedian, Actor & Host

Kenny Smith

Two-Time NBA World Champion & NBA Analyst, "Inside the NBA"

Talk of Champions: Stories of the People Who Made Me: A Memoir

Kendall Jenner

Model, Reality TV Star, Fashion Contributor

Michelle Phan

Make-Up Artist, Entrepreneur, YouTube Personality; Founder of ipsy and EM Cosmetics

Jamie Chung

Actress and Blogger

Hayden Panettiere

Actress Known for "Nashville" & "Heroes" & Animal Rights Activist

Bar Refaeli

Israeli Model

Karena Dawn

Co-Founder of Tone It Up & Personal Trainer

Jeanette Jenkins

Founder & President of The Hollywood Trainer Fitness Company

Val Kilmer

Actor Known for his Roles in "Batman Forever" and "Top Gun," Among Others

Peter Gallagher

Multi-Award Winning Film, Television and Theater Actor; Known for His Roles on "The OC" and Broadway Play "On the Twentieth Century"

Katherine Schwarzenegger Pratt

Best-Selling Author & Philanthropist

Brooke Williamson

Co-Executive Chef and Co-Owner, Hudson House and The Tripel; Season 14 Winner of "Top Chef"

Danny Trejo

Actor, Author, Activist & Restaurateur; Recovery & Intervention Counselor for Troubled Youth

Gabby Reece

Beach Volleyball Champion, First Female Spokeswoman for Nike, Creator of HIGHX, New York Times Best Selling Author, Model and Actress.

Harley Pasternak

Diet & Fitness Expert; Best-Selling Author

MC Lyte

Queen of Hip-Hop who Supports Worthy Causes such as AIDS Awareness, Anti-Violence & Rock-the-Vote