Valerie Jarrett

Civic Leader, New York Times Best-Selling Author & Former Senior Advisor to President Obama

Valerie Amos

First Black Woman to Serve in a British Cabinet & As a Leader of The House of Lords; Master of University College, Oxford

Emma Thompson

Oscar-Winning Actress & Screenwriter; Known For "Brave" & "Nanny McPhee"

Gary Hirshberg

Co-Founder & Chief Organic Optimist of Stonyfield Farm

Paul Rieckhoff

Founder and Executive Director of Iraq and Afghanistan Veterans of America (IAVA); Author, "Chasing Ghosts: Failures and Facades in Iraq"

Mark Kramer

Co-founder of FSG, Author & Co-Creator of Shared Value Concept

William Ury

Author, Mediator & Co-Founder of Program on Negotiation at Harvard Law School

Helen Clark

Former Administrator of the United Nations Development Programme & Former Prime Minister of New Zealand

Megan Rapinoe

Midfielder & Winger on the U.S. Women's National Soccer Team, Olympic Gold Medalist, LGBTQ+ Activist

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

Christ in Crisis: Why We Need to Reclaim Jesus

Tom Stewart

Editor, Harvard Business Review

Lori La Bey

Founder of Alzheimer's Speaks; Shifting Dementia Care Culture from Crisis to Comfort; Co-Founder of Dementia Map Global Resource Directory

Floyd Abrams

First Amendment Attorney

Big Sean

Rapper & Hip-Hop Artist Known for "My Last" and "Control"; Founder of the Sean Anderson Foundation

Kendrick Lamar

Grammy & Pulitzer Award-Winning Hip-Hop Recording Artist & Rapper

Anuradha Koirala

Former Governor of Bagmati Province; Nepalese Social Activist

Elton John

British Singer-Songwriter Known for "Rocket Man," "Tiny Dancer" & "Your Song;" Subject of 2019 Biopic "Rocketman"

Donald Glover

Award-Winning Actor, Comedian, Writer, Director & Musician; Performs as Childish Gambino

Alicia Keys

Grammy Award-Winning Singer-Songwriter, Record Producer & Activist

General Wesley Clark

Retired Four-Star Army General & Former NATO Supreme Allied Commander