Sophia Bush

Actress, Humanitarian & Author

John Legend

EGOT Winning Musician, Producer & Philantropist

Hasan Minhaj

Comedian, Actor, Writer & Star of "Patriot Act with Hasan Minhaj"

Kate McKinnon

Emmy Award-Winning Comedian & Former Cast Member of "Saturday Night Live"

Guy Kawasaki

Chief Evangelist of Canva & Executive Fellow of the Haas School of Business (UC Berkeley); Former Chief Evangelist of Apple

Guy Kawasaki - TedX Harker School

Nicole Byer

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

Kevin O'Leary

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

Monica Lewinsky

Producer, Social Activist, Contributing Editor to Vanity Fair, Expert on Cyberbullying, Women's Issues & Reinvention

Monica Lewinsky Suits Up for Reformation's New Power Voting Campaign

Ronda Rousey

Former UFC Champion & WWE Wrestler; Olympic Medalist; Actor & Author

Our Fight: A Memoir

Ree Drummond

Host of "The Pioneer Woman" on the Food Network

Kal Penn

Actor, Writer, Producer & Former Associate Director of the White House Office of Public Engagement

Anne-Marie Slaughter

Foreign Policy Expert, Author & CEO of New America Foundation

Michael Strahan

Co-Host of "Good Morning America", "Fox NFL Sunday" Analyst, NFL Hall of Famer & Super Bowl Champion

Michael Strahan and his daughter Isabella, 19, reveal her brain cancer diagnosis in emo...

Cecily Strong

Actress, Comedian, "Saturday Night Live" Cast Member & Former Co-Anchor of "Weekend Update"

Dr. Jill Bolte Taylor

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

Patrick Kennedy

Former Congressman (D-RI); Founder of The Kennedy Forum; Co-Founder of One Mind

Hines Ward

2-time Super Bowl Champion, Former Assistant Coach for NY Jets & Head Coach of the San Antonio Brahmas of the XFL

Herschel Walker

Former NFL Running Back, 1982 Heisman Trophy Winner & Mental Health Awareness Advocate

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Marcus Samuelsson

James Beard Award-Winning Chef & Owner of the Red Rooster Restaurant