Tracy Anderson

Fitness Pioneer, Entrepreneur & Author, Founder of The Tracy Anderson Method

Peter Dinklage

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

Amy Smart

Actress, Environmentalist & Co-Founder of Smart House Collections

Shaun Robinson

Former Co-Host of Access Hollywood; Advocate for Young Women & Founder of "One Girl: A Million Ways to Make a Difference"

Marianne Williamson

Renowned Authority on Spirituality & Metaphysics; Author of "Everyday Grace;" 2024 Democratic Presidential Candidate

Martin Sheen

Award-Winning Actor Known for "The West Wing" & "Grace and Frankie;" Social Activist & Humanitarian

Chris Matthews

Former Host, Hardball with Chris Matthews, MSNBC

Timothy Shriver

Chairman & CEO of the Special Olympics

Natalie Morales

Journalist & Anchor; Co-Host of 'The Talk'

Jonathan Bush

Technology Entrepreneur; Co-Founder & Former CEO of athenahealth

Carly Simon

Singer-Songwriter & Author; Known for "You're So Vain"

Robin Miller

Host of "Quick Fix Meals with Robin Miller" on Food Network, Nutritionist

Bob Rotella

World's Foremost Sports Psychologist; Peak Performance Expert; Author, "Golf Is Not A Game Of Perfect"

Tionne Watkins

Grammy Award-Winning Singer Known as "T-Boz;" Sickle Cell Anemia Advocate & Brain Tumor Survivor

Michelle Pfeiffer

American Actress & Singer

Cristina Saralegui

Journalist, Actress, Author & TV Personality; Best Known for "The Cristina Show"

Kevin Nealon

Former Cast Member of 'Saturday Night Live'; Co-Star on Showtime's "Weeds"

Lucy Liu

Actress, Model, Artist, Film Producer & Director

Suzy Welch

Best-Selling Author, Popular Television Commentator & Noted Business Journalist

Clark Gregg

Actor Known For "The New Adventures of Old Christine" & "The Avengers"

Chef Lala (Laura Diaz)

Celebrity Chef & Nutritionist; Bestselling Author

Marc Summers

Television Host of Food Network's "Unwrapped", Spokesperson for Obsessive Compulsive Disorder, Co-Author of "Everything In Its Place"

Al Roker

Co-Host NBC Today Show Media Entrepreneur, Author

Zosia Mamet

Actress Known for Her Role in HBO's "Girls"

Anna Paquin

Actress Best Known for "True Blood" and for the X-Men Franchise

Bob Arnot

Medical and Foreign Correspondent and Best-Selling

Rick Springfield

Australian Musician, Singer-Songwriter & Actor Known for "Jessie's Girl"

Mandy Patinkin

Actor Best Known for "Homeland," "Criminal Minds" and "The Princess Bride"

Antonia Lofaso

Celebrity Chef Specializing in Italian Cuisine and Stars on "Cutthroat Kitchen" and "Top Chef"

Martin Seligman

Zellerbach Family Professor of Psychology & Director of the Positive Psychology Center at the University of Pennsylvania

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