Paul DePodesta

Chief Strategy Officer of the NFL's Cleveland Browns & Former Manager of MLB's Los Angeles Dodgers; Subject of "Moneyball"

Curtis Stone

Celebrity Chef; Host of "Top Chef Masters" on Bravo

Douglas Conant

Chairman, Avon Products; Founder & CEO, Conantleadership; Chairman, Kellogg Executive Leadership Institute at Northwestern University; Former CEO & President, Campbell Soup Company

Robert Kirkman

Writer and Creator of "Outcast," "The Walking Dead" and its Spin-off, "Fear the Walking Dead"

Terrence Howard

Actor, Musician & Activist; Known for Fox's "Empire"

Brittany Snow

Actress, Producer, Director, Singer & Co-Founder of Love Is Louder

Al Franken

Former Senator from Minnesota; Former SNL Writer; SiriusXM Radio Show Host

Dan + Shay

Grammy Award-Winning Country Music Duo Known for "Speechless" & "Tequila"

Shawn Mendes

Award-Winning Pop Singer-Songwriter

Elizabeth Vargas

Emmy Award-Winning Journalist; Best-Selling Author; Anchor for NewsNation

Vivica A. Fox

Actress, Producer, Director, Host, Author & Entrepreneur

Kevin Rose

Venture Capitalist; Former TechTV/G4 Personality; Founder of Digg & Entrepreneur

Kelly Clarkson

Three-Time Grammy Recipient & Winner of the First Season of "American Idol"; Known for "Stronger" & "Catch My Breath"

John Cusack

American Film Actor and Writer; "High Fidelity" and "Being John Malkovich"

Bill Murray

Emmy Award-Winning Comedic Actor; "SNL" and "Ghostbusters"

Natalie Portman

Award-Winning Actress Known for "Black Swan," "V for Vendetta" & Playing Padmé Amidala in the Star Wars Prequel Trilogy

Natalie Portman on self-confidence and performing from an early ...

Jennifer Hudson

Award-Winning Actress & Singer

Joel McHale

Host of E! Network's "The Soup" & Star of NBC's Hit Comedy Series "Community"

Dana Carvey

Actor and Stand Up Comedian, Cast Member on Saturday Night Live and Garth Algar in "Wayne's World"

Christina Milian

Television Personality, Host, R&B Singer-Songwriter and Actress