David Zinczenko

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

Louis Lombardi

Actor; Known for his Notable Appearances in "24" and "The Sopranos"

James Dashner

Author of Many Children's Fantasy Series and Adult Books, Including "The Maze Runner" Series

James Wolk

Actor Known for His Role in CBS' "Zoo"

D.B. Weiss

Executive Producer & Writer, "Game of Thrones"

Peter Dinklage

Emmy Award-Winning Actor, Known for his Role on "Game of Thrones"

Michael McGrady

Motivational Speaker, Theater, Film & Television Actor; Best Known for "Ray Donovan"

Ringo Starr

English Musician, Singer and Actor Who Gained Worldwide Fame as the Drummer for the "Beatles"

Robert De Niro

Award-Winning Actor Known for "Raging Bull," "The Godfather: Part II" & "The Irishman;" Co-Founder of Tribeca Productions

What’s Robert De Niro’s Favorite Robert De Niro Movie?

Colin Cowie

Celebrity Event Planner & Designer, Author, Lifestyle Expert & Ambassador of Style

Tom Hardy

English Actor Known for "This Means War," "The Dark Knight Rises," "Inception." & "Mad Max"

Tony Shalhoub

Award-Winning Actor, Known for His roles in "Monk" and "The Marvelous Mrs. Maisel"

Kurtwood Smith

American television and film actor; best known for playing Clarence Boddicker in "RoboCop" and Red Forman in "That '70s Show"

Wilson Bethel

Actor, appeared in "The Young and the Restless" and the CW's "Hart of Dixie"

Ian Harding

Actor Known for his Role as Ezra Fitz on "Pretty Little Liars"

Charles Mattocks

Award-Winning Actor, Director, Producer, Television Host & Health Advocate

Shalini Vadhera

Author, Celebrity Makeup Artist, Global Lifestyle Expert

Edward Lee

Author, Food Documentarian & Chef and Owner of 610 Magnolia in Louisville, KY

Joe Manganiello

Actor & Filmmaker; Known for his Roles in "True Blood" and "Magic Mike"

Nick Jonas

Multi-Platinum & Grammy Nominated Recording Artist, Actor, Award-Winning Songwriter, Member of the Jonas Brothers & Diabetes Advocate

Susie Fishbein

Cook & Author of the "Kosher by Design"

Lily Collins

Actress, Model & Author Best Known For "Emily in Paris"

Lily Collins - Vogue Scandinavia

Cary Elwes

Actor; Known for "The Princess Bride"

Steve Martin

Iconic Actor, Comedian, Author, Playwright & Musician

David Chang

Founder & Chef of Momofuku Restaurant Group

William H. Macy

American Actor, Screenwriter, Teacher & Director in Theater, Film & Television

Wil Wheaton

Actor, Author & Blogger; Known for "Star Trek: The Next Generation" & "The Big Bang Theory"

Steven Spielberg

Oscar Award-Winning Filmmaker

Ewan McGregor

Actor Known for "Trainspotting," "Big Fish" & "Salmon Fishing in the Yemen"

Dave Navarro

Musician & Host of "Ink Master"; Best Known as a Member of Jane's Addiction & Former Member of Red Hot Chili Peppers