Gretchen Rubin

New York Times Best-Selling Author of "The Happiness Project;" Host of Podcast "Happier with Gretchen Rubin"

Gretchen Rubin - Knowing Yourself: Why You're Happy and You ...

Joe Torre

Chief Baseball Officer for Major League Baseball; National Baseball Hall of Famer, 4-Time World Series Champion & 9-Time MLB All-Star

Indra Nooyi

Former Chairman & CEO of PepsiCo

Chris Hughes

Senior Fellow, Institute on Race, Power, and Political Economy; Co-founder of Facebook & Former Editor-in-Chief at The New Republic

Laura Benanti

Tony Award-Winning Actress & Singer

Jared Cohen

President, Jigsaw (previously Google Ideas) & Chief Advisor to Alphabet Executive Chairman (former Google CEO) Eric Schmidt

John Stossel

Emmy-Award Winning Journalist

Charlie Rose

Anchor and Executive Editor

Maria Menounos

CEO & Co-founder of AfterBuzz TV; Former E! News Co-Anchor; Best-selling Author, Journalist & Type-1 Diabetic

Gabrielle Bernstein

Founder of HerFuture.com & New-York Times Best-Selling Author

American Authors

Indie Rock Band; Known for "Best Day Of My Life"

John Mulaney

Stand-Up Comedian & Former Writer for "Saturday Night Live"

Neil Blumenthal

Co-Founder & Co-CEO of Warby Parker

Hannibal Buress

Stand-Up Comedian, Actor & Television Writer; Known for Comedy Central's "Broad City" & "The Eric Andre Show"

Jessica Williams

Actress, Comedian, Former Correspondent on "The Daily Show" & Co-Host of the "2 Dope Queens" Podcast

Andy Samberg

Actor, Comedian, Rapper & Writer; Known for "Saturday Night Live" & "Brooklyn Nine-Nine"

John Oliver

Emmy-Winning Comedian, Best Known for "The Daily Show with Jon Stewart" & "Last Week Tonight"

Bobby Flay

Chef & Host of "Throwdown With Bobby Flay" and "America's Next Great Restaurant"

Cynthia Nixon

Actress Known for her Role as Miranda Hobbes on HBO's "Sex and the City"; Former Candidate for Governor of New York

Christian Siriano

Fashion Designer, Founder of Christian Siriano, Winner of "Project Runway" Season 4