David Moinina Sengeh

Minister Of Basic and Senior Secondary Education & Chief Innovation Officer for the Government of Sierra Leone

Eldar Shafir

Professor Behavioral Science and Public Policy & Professor of Psychology and Public Affairs, Princeton University

Max Levchin

CEO, Affirm; Co-Founder of PayPal

Arne Duncan

Managing Partner at Emerson Collective; Former U.S. Secretary of Education

Wynton Marsalis

Grammy & Pulitzer Prize-Winning Musician; Artistic Director of Jazz at Lincoln Center

H.R.H., Dr. Carmen M. Castro, D.B.A.

Senior Business Executive & World Renowned Public Motivational Speaker

Janelle Monáe

Singer-Songwriter, Rapper, Actress & LGBTQ Advocate

Andy Puddicombe

Co-Founder of Headspace

Elizabeth Vargas

Emmy Award-Winning Journalist; Best-Selling Author; Anchor for NewsNation

Oscar Arias

Former President of Costa Rica & Nobel Laureate

J.J. Watt

Former NFL Player; Three-Time NFL Defensive Player of the Year; Studio Analyst for 'The NFL Today'

Jamie-Lynn Sigler

Actress Known for "The Sopranos" & "Big Sky" & Co-Host of "MeSsy"; Spokesperson for Eating Disorders & Multiple Sclerosis Survivor

Meghan McCain

Political Columnist, Author & Award-Winning Blogger

James McBride

New York Times Best-Selling Author & Musician

Lil' Kim

Rapper & Activist

John Boyega

British Actor Known for "Star Wars"

Judith Light

Award Winning Actress & Activist

Juicy J

Oscar-Award Winning Rapper, Songwriter & Record Producer; Founding Member of Three 6 Mafia

Chronicles of the Juice Man: A Memoir

Branford Marsalis

Grammy Award-Winning Jazz Musician & Passionate Music Educator

Kareem Abdul-Jabbar

Highest-Scoring NBA Player in History & Cancer Survivor

A Season on the Reservation: My Soujourn With the White Mountain Apaches

Tegan & Sara

Canadian Pop Duo

Maggie Q

TV & Film Actress, Known for Lead Role in CW's "Nikita"

Malcolm Jamal Warner

Emmy Award-Nominated Actor & Grammy Award Winner; 80's Icon Known for his Role as Theo Huxtable on "The Cosby Show"

Gladys Knight

Singer-Songwriter & Actress