Serena Williams

Iconic Professional Tennis Player & Olympic Gold Medalist; Activist, Philanthropist & Entrepreneur

Dr. Michio Kaku

World-Renowned Futurist & Theoretical Physicist

Amy Purdy

Former "Dancing with the Stars" Contestant & Paralympic Professional Snowboarder

Trevor Noah

Emmy Award-Winning Comedian & Bestselling Author; Former Host of "The Daily Show"

Iyanla Vanzant

New York Times Best-Selling Author, Spiritual Life Coach & Host of "Iyanla Fix My Life"

Maya Moore

Activist, Olympian & WNBA Champion

Lady Gaga

Grammy Award-Winning Pop Singer-Songwriter & Award-Winning Actress Known for "A Star is Born" & "Joker: Folie à Deux'; Founder of Haus Labs Cosmetics

Tim Gunn

Fashion Icon, Former Co-Host & Mentor of "Project Runway"

Steve Wozniak

Co-Founder of Apple Computer, Inc.

Nicole Byer

Comedian, Actress & Writer; Co-Host of "Wipeout"

Simon Sinek

World-Renowned Leadership Expert & Best-Selling Author

Kevin O'Leary

Founder of O'Leary Financial Group; Venture Capitalist & Financial Expert Known for "Shark Tank"

Les Brown

Motivator, TV Personality & Best-Selling Author

Goldie Hawn

Academy Award-Winning Actress & Founder of the Hawn Foundation

Dr. Johné Battle

Senior Vice-President, Chief Diversity Officer at Dollar General

Sydney McLaughlin-Levrone

USA Track & Field Athlete & Olympic Gold Medalist; Author, "Far Beyond Gold: Running from Fear to Faith"

Far Beyond Gold: Running from Fear to Faith

Nick Vujicic

Motivational Speaker, NY Times Best-Selling Author, Founder & CEO of Life Without Limbs

Liz Wiseman

President of The Wiseman Group & Best-Selling Author of "Multipliers"

Dr. Jill Bolte Taylor

Scientist, Author & CEO of My Stroke of Insight, Inc.

Tyra Banks

Host & Executive Producer, "Dancing With the Stars"; Model, TV Personality, Host of "America's Next Top Model"