Alfre Woodard

Emmy Award-Winning Actress; Human Rights Activist

Amy Grant

Grammy-Winning Singer-Songwriter; Known as "The Queen of Christian Pop"

Anastacia

Vocalist, Entertainer, Musician & Breast Cancer Survivor

Benedict Cumberbatch

English Actor Best Known for "Sherlock;" Ambassador for the Motor Neurone Disease Association

Brad Pitt

Actor, Producer, Philanthropist & Environmental Activist

Bradley Cooper

Actor Known for "Silver Linings Playbook," "Serena" & "American Sniper"

Britney Spears

Pop Singer and Performer

The Woman in Me

Bryan Cranston

Actor, Author & Activist Best Known for "Breaking Bad;" Alzheimer's Advocate

Chiwetel Ejiofor

British Actor Known for "12 Years a Slave"

Christina Applegate

Emmy Award-winning Actress & Co-Host of "MeSsy"; Breast Cancer Survivor & Multiple Sclerosis Survivor

Christoph Waltz

Oscar-Winning Actor & Director

Christopher McQuarrie

American screenwriter, Producer and Director: Valkyrie and The Usual Suspects

Cuba Gooding Jr.

Academy Award-Winning Actor Known for his Roles in "Jerry Maguire," "American Gangster," "The Butler" & "American Crime Story: The People v. O.J. Simpson"

Cynthia Nixon

Actress Known for her Role as Miranda Hobbes on HBO's "Sex and the City"; Former Candidate for Governor of New York

DJ Pauly D

DJ and Former Cast Member of MTV's "The Jersey Shore"

David Duchovny

Actor, Writer & Director Known for "The X-Files," "Aquarius" & "Californication"

Derek Muller

Youtuber, Filmmaker & Television Presenter

Dr. Dean Ornish

Physician, Leading Researcher in Healthcare, Founder of the Preventive Medicine Research Institute & Bestselling Author

Dr. Mehmet Oz

Cardiothoracic Surgeon; Host of "The Dr. Oz Show;" Columbia University Professor & Author

Dr. Michael Roizen

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