Adrian Grenier

Actor Known for HBO's "Entourage"; Environmental Activist; UN Ambassador

Al Gore

45th Vice President of the United States, Nobel Peace Laureate & Bestselling Author

America Ferrera

Award-Winning Actress, Producer & Humanitarian

Anderson Cooper

Journalist, TV Personality, Anchor of CNN's "Anderson Cooper 360°"

Angela Davis

Feminist, Social Activist, Professor & Writer

Abolition: Politics, Practices, Promises, Vol. 1

Ariana Grande

Singer Known for "Thank U Next" & "God is a Woman"

Bethenny Frankel

Entrepreneur, Reality TV Star & Bestselling Author; Founder of Skinnygirl & BStrong Disaster Relief

Billie Eilish

Academy & Grammy Award-Winning Singer-Songwriter Known for "when the party's over" & "bad guy"

Billie Eilish and Finneas O'Connell Wins Original Song - Motion Picture

Bob Costas

Award-Winning Sportscaster, Broadcaster & Best-Selling Author

Cardi B

Grammy Award-Winning Rapper Known for "Bodak Yellow"

Chris Gardner

Author of "Pursuit of Happyness," Entrepreneur, Speaker & Philanthropist

Chrissy Metz

Actress & Singer Best Known for NBC's "This Is Us"

Cynthia Cooper

Olympic Gold Medalist, Two-Time WNBA MVP; Former Head Coach of Texas Southern Women's Basketball Team

Dan Buettner

National Geographic Writer, Renowned Explorer & Author of "Blue Zones"

Derek Hough

Dancer, NYT Bestselling Author, Emmy Award Winner for Outstanding Choreography & Six-Time Champion of ABC's "Dancing with the Stars"

Dr. Mehmet Oz

Cardiothoracic Surgeon; Host of "The Dr. Oz Show;" Columbia University Professor & Author

Ellen DeGeneres

Award-Winning Comedian, TV Host, Actress & LGBTQ Activist

Emma Stone

Two-Time Academy Award-Winning Actress Best Known for "La La Land," "Cruella" & "Poor Things"

'Poor Things' with Emma Stone, Willem Dafoe, Mark Ruffalo & more

Eric Nam

Korean American Pop Superstar; Co-Founder & Creative Director, DIVE Studios; GQ Korea's "Man of the Year"

Erin Burnett

News Anchor for "OutFront" Nightly News; Chief Business and Economics Correspondent for CNN