Jenn Lim

CEO & Chief Happiness Officer at Delivering Happiness

Global Happiness and Well-Being Policy Report

Pat Williams

Motivational Speaker & Sports Executive; Senior Vice President of the NBA’s Orlando Magic

Bret Michaels

Singer-Songwriter, Musician & Reality Television Personality

Misty Copeland

First African American Female Principal Dancer with the American Ballet Theatre; Author

Bob Iger

Former Chairman & CEO of Walt Disney Co.

Priyanka Chopra Jonas

World-Renowned Actress; Named in Time's 100 Most Influential People in the World; UNICEF Ambassador & Social Activist

Priyanka Chopra Jonas Signs First Look TV Deal With Amazon

Ray Kurzweil

Chairman of Kurzweil Technologies; Inventor; Futurist

Randi Zuckerberg

CEO & Founder of Zuckerberg Media, Author

Mike Eruzione

Captain of the 1980 US Olympic Hockey Team & Subject of the Hit Film, "Miracle"

Ben Stein

Political Economist, Commentator, Author & Actor

Dolly Parton

Country Singer-Songwriter, Actress, Author & Philanthropist

Roland Martin

Award-Winning Journalist & Media Personality, Author of "Listening to the Spirit Within: 50 Perspectives on Faith"

Speak, Brother!: A Black Mans View Of America

Nastia Liukin

Olympic Gold Medal Gymnast

Duff Goldman

Pastry Chef & Food Network Host; Star of "Ace of Cakes"

Buddy Valastro and Duff Goldman make pastry magic on 'GMA'

Tom Hardy

English Actor Known for "This Means War," "The Dark Knight Rises," "Inception." & "Mad Max"

David Oyelowo

Actor Known for "Selma," "The Butler" & "Rise of the Planet of the Apes"

Oyelowo Says Academy Punished 'Selma' Cast For Protesting Garner's Death

Biz Stone

Co-Founder of Twitter

Steve Rizzo

Hall of Fame Motivational Business Expert & Former National Headline Comedian

Phillip Phillips

Singer-Songwriter and Winner of Season 11 of "American Idol"

Bethenny Frankel

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

Bethenny Frankel Launches Self-Made Mogul Podcast 'Just B'