Ginger Zee

Chief Meteorologist for ABC News, Author & Mental Health Advocate

Chasing Helicity: Through the Storm (The Chasing Helicity Series) (Chasing Helicity Ser...

Astro Teller

Captain of Moonshots, Google X

Colin Egglesfield

Actor, Producer, Entrepreneur & Motivational Speaker; Founder of Shout Out! Shirts & The AgileArtist Movement; Cancer Survivor

A$AP Ferg

Hip-Hop Recording Artist From Harlem; Member of the Hip-Hop Collective A$AP Mob

Nate Parker

Actor Known for "Red Tails," "The Secret Life of Bees" and "The Great Debaters"

Tori Kelly

Singer-Songwriter; Known for the Single "Dear No One"

Margaret A. Neale

Adams Distinguished Professor of Management at the Stanford Graduate School of Business, Co-director of the Executive Program for Women Leaders

Peter Dinklage

Emmy Award-Winning Actor, Known for his Role on "Game of Thrones"

Zosia Mamet

Actress Known for Her Role in HBO's "Girls"

Edgar Ramírez

Actor, most well known for his role as Ares in "Wrath of the Titans."

Bella Thorne

Model, Actress & Author

Travis Bradberry

Expert on Emotional Intelligence & Co-Founder of TalentSmart

Scotty McCreery

Country Music Singer and Winner of American Idol Season 10

Go Big or Go Home: The Journey Toward the Dream

Chip Wilson

Founder and Chairman of the Board Lululemon

Drew Houston

Co-Founder & CEO of Dropbox

Tim O'Reilly

Founder & CEO of O'Reilly Media

David Nico

Author, Health Strategist & Leadership Well-Being Expert

Nico sample clip

Tal Ben-Shahar

Best-Selling Author & Positive Psychology Expert

Franklin Graham

President & CEO of the Billy Graham Evangelistic Association, Christian Evangelist & Missionary

Timothy Shriver

Chairman & CEO of the Special Olympics