Lea Michele

American Actress Best Known For Fox's "Glee" and "Scream Queens"

Kristin Cavallari

TV Personality, Fashion Designer, Bestselling Author & Founder of the Lifestyle Brand Uncommon James

True Comfort: More Than 100 Cozy Recipes Free of Gluten and Refined Sugar: A Gluten Fre...

Elizabeth Banks

Actress Best Known for "The Hunger Games" Series and "Pitch Perfect"

Ed Westwick

Star of "Gossip Girl" and "Wicked City"

Brittany Snow

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

Ami James

Celebrated Israeli-born Tattoo Artist, Television Personality and Entrepreneur

Demi Lovato

Grammy Nominated Singer-Songwriter, Musician, Philanthropist & Mental Health Advocate

Cody Simpson

Australian Singer, Songwriter

Dabo Swinney

Head Football Coach of the Clemson University Tigers

Jeremy Lin

Professional Basketball Player for Beijing Ducks of the Chinese Basketball Association

Jalen Rose

Former ESPN Analyst & NBA Player

Sara Bareilles

Singer-Songwriter, Actress, Author & Philanthropist; Known for "Love Song" & "Brave"

Bruno Mars

Grammy Award-Winning Singer-Songwriter & Record Producer

Kellie Pickler

Country Music Artist, American Idol Alum, "Dancing with the Stars" Winner & Host of Daytime Talk Show "Pickler & Ben"

Ross Mathews

Host of Hello Ross! & Author of "Man Up: Tales of My Delusional Self-Confidence"

Dambisa Moyo

Global Economist, Author & Investor in the Future

John Mulaney

Stand-Up Comedian & Former Writer for "Saturday Night Live"

Charles Esten

Singer and Actor, Known for his Role on "Nashville"

Tim Ferriss

Angel Investor & Author of "The 4-Hour Workweek"

Hannibal Buress

Stand-Up Comedian, Actor & Television Writer; Known for Comedy Central's "Broad City" & "The Eric Andre Show"