Tariq Ramadan

Professor of Contemporary Islamic Studies in the Faculty of Oriental Studies at Oxford University

Allen Iverson

Former NBA Professional Basketball Player

Warren Buffett

Business Mogul & Investor; CEO of Berkshire Hathaway

Arlo Parks

British Singer-Songwriter Known for her Debut Album, "Collapsed in Sunbeams"

Fred Couples

American Professional Golfer; 1991 PGA Tour Player of the Year

Joss Whedon

American Screenwriter, Executive Producer, Film/TV Actor and Writer; Known for "Buffy the Vampire Slayer," "Agents of S.H.I.E.L.D." & "The Avengers"

David Boies

Founder and the chairman of the law firm, Boies, Schiller & Flexner

Dan Reynolds

Lead Vocalist for Imagine Dragons, Grammy Award-Winning Musician & Songwriter

Dan Reynolds Lifts Like An Olympian | Train Like | Men's Health

Bill Cosby

Influential Comedian and Actor; Starred in "The Cosby Show"

Lord of the Dance

Celtic Dance Ensemble; Michael Flatley Currently Serves as Artistic Director

Bob Weir

Musician; Founding member of The Grateful Dead, RatDog, and Dead & Company

Jay-Z

Renowned Rapper and Entrepreneur

Sally Field

Academy Award-winning Actress, Director & Producer

Livia Firth

Co-Founder & Creative Director of Eco-Age

Tyler Childers

Singer-Songwriter Whose Music Is A Mix of Country, Folk & Bluegrass

Quincy Jones

Producer / Grammy-Winning Composer

Mos Def

Hip-Hop Artist & Actor

Andrew Dice Clay

Comedian and actor known for "Pretty in Pink" and "Blue Jasmine"

Christo Greyling

Director, HIV and Infectious Diseases, World Vision International

Sir Ronald Cohen

Chairman, Global Social Impact Investment Steering Group and The Portland Trust; Co-Founder, Apax Partners