Laila Ali

Undefeated Four-Time World Champion Boxer & Lifestyle Expert; Heart Disease Awareness Advocate

Jason Alexander

Actor, Writer & Director; Best Known for His Work on "Seinfeld"

Candace Cameron Bure

Women & Youth Speaker Best Known for Her Role on "Full House" & "Fuller House"; Former Co-Star on "The View"

Rainn Wilson

Actor Known for "The Office" & Creator of SoulPancake

Soul Boom: Why We Need a Spiritual Revolution

Amy Schumer

Award-Winning Actress & Comedian; Author of "The Girl with the Lower Back Tattoo;" Feminist Advocate

Amy Schumer diagnosed with rare health disorder: ‘Something was wrong’

Brittany Snow

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

Ross Mathews

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

Nash Grier

Social Media Guru, Digital Influencer & Environmental Activist

Kathryn Bigelow

First Woman to Win an Academy Award for Best Director; Known for "Zero Dark Thirty" & "The Hurt Locker"

Lauren London

Actress, Model & Television Personality

Olivia Holt

Actress & Singer

Lea Michele

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

Jane Lynch

Emmy Award-Winning Actress, Known for "Glee" and Hosting "Hollywood Game Night"

Leighton Meester

Actress, Singer, Best known as Blair Waldorf in Gossip Girl

Lily Tomlin

Actress & Comedian; Star of Netflix's "Grace and Frankie"

Chelsea Peretti

Comedian, Writer & Actress Known for "Brooklyn Nine-Nine"

Nina Dobrev

Canadian Actress & Model; Best Known for "The Vampire Diaries" and "Degrassi"

Mark Cuban

Serial Entrepreneur, Investor & Owner of the Dallas Mavericks

Sofia Vergara

Actress, Entrepreneur, Comedian Known for "Modern Family"

Aubrey Plaza

Actress, Comedian & Producer Known for NBC's "Parks and Recreation"