John Rich

Singer, Songwriter, Producer, Host of "Gone Country" & Winner of "Celebrity Apprentice"

Kristen Schaal

Actress, Stand-Up Comedian & Writer

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Rosie O'Donnell

Comedian, Actress, Author & Television Personality

Leighton Meester

Actress, Singer, Best known as Blair Waldorf in Gossip Girl

Joe Scarborough and Mika Brzezinski

Hosts of "Morning Joe"

Jeffrey Tambor

Emmy Award-Winning Actor of "Arrested Development," "The Hangover" & "Transparent"

Russell Simmons

Entrepreneur & Philanthropist

Donald Trump

45th President of the United States; Businessman & TV Personality

Diane Sawyer

Anchor, ABC World News

Charles Leadbeater

Innovation Expert & Author

Lily Tomlin

Actress & Comedian; Star of Netflix's "Grace and Frankie"

Adam Devine

Comedian & Actor Known for "Workaholics" & "Pitch Perfect"

Ami James

Celebrated Israeli-born Tattoo Artist, Television Personality and Entrepreneur

Karrueche Tran

Model

Keenen Ivory Wayans

Comedian, Director & Writer; Known for "White Chicks" and "In Living Color"

Kathy Bates

Academy Award-Winning Actress; Cancer Survivor & Chairperson for the Lymphatic Education & Research Network

Joshua Cooper Ramo

Managing Director at Kissinger Associates; Author of "The Age of the Unthinkable" & "Seventh Sense"

Sara Bareilles

Singer-Songwriter, Actress, Author & Philanthropist; Known for "Love Song" & "Brave"

Jonah Lehrer

Neuroscientist, New York Times bestselling author of "Imagine: How Creativity Works"

Brian Williams

Former Anchor and Managing Editor, "NBC Nightly News" and "Rock Center with Brian Williams"