Simon Sinek

World-Renowned Leadership Expert & Best-Selling Author

John Legend

EGOT Winning Musician, Producer & Philantropist

Blythe Danner

Emmy Award-Winning Actress & Activist

Mika Brzezinski

Co-host of MSNBC's "Morning Joe" & Bestselling Author; Founder of "Know Your Value"

Steve Wozniak

Co-Founder of Apple Computer, Inc.

Venus Williams

Professional Tennis Player, Four-Time Olympic Gold Medalist, Equal Pay Activist, Author & Entrepreneur

Hilary Swank

Academy Award-Winning Actress; Best known for her roles in 'Million Dollar Baby' and 'Boys Don't Cry'

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...

Ian Somerhalder

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

Gary Sinise

Actor & Advocate for America's Servicemen and Women; Founder of the Gary Sinise Foundation

William Shatner

Emmy-Award Winning Actor, Known for "Star Trek" & "Boston Legal"

Joe Scarborough

Co-Host of MSNBC's "Morning Joe" & Former U.S. Congressman

Deion Sanders

Head Football Coach at the University of Colorado Boulder; NFL Hall of Famer, Two-Time Super Bowl Champion, and Broadcast Analyst

Elevate and Dominate: 21 Ways to Win On and Off the Field

Mitt Romney

Former Governor of Massachusetts, 2012 Republican Presidential Nominee and CEO

Jim Rogers

Investment Expert & Author of "Street Smarts: Adventures on the Road and in the Markets"

Rob Riggle

Actor, Comedian, Writer, Producer, Director & Former U.S. Marine

Retta

Stand-Up Comedian & Actress Known for "Parks and Recreation"

Bill Nye

"The Science Guy"; Science Communicator, TV Presenter & Mechanical Engineer; Climate Change Activist

Seth Meyers

Host of "Late Night with Seth Meyers" & Former Head Writer for SNL

Rob Lowe

Actor, Best-Selling Author, Podcaster & Philanthropist

Steven Levitt

Economist, NY Times Bestselling Author of "Freakonomics," "SuperFreakonomics" & "Think Like a Freak"

Spike Lee

Academy Award-Winning Writer, Producer, Actor & Director; Best Known for "BlacKkKlansman" & "Malcolm X"

Ashley Judd

Actress, Activist & Humanitarian

Alan Alda

Actor; Writer; Science Advocate; Director