Joshua Harris

Former Pastor; Author of "I Kissed Dating Goodbye"

Holly Robinson Peete

TV Personality & Co-Founder of the HollyRod Foundation; Compassionate Care Advocate for Autism & Parkinson's Disease

Holly Robinson Peete Sizzle Reel

Alexandra Cousteau

Environmental Activist, Ocean Advocate & Storyteller; Co-Founder, Oceans2050 & Senior Advisor, OCEANA

Jessica Alba

Actress, Entrepreneur, Founder & Former Chief Creative Officer of The Honest Company; Co-Host of "Honest Renovations" & Bestselling Author of "The Honest Life"

Danny Cahill

The BIGGEST "The Biggest Loser." Lost 236 pounds in less than 7 months!

Nadia Giosia

Celebrity Chef, Comedian & Punk Rock Singer; Star of "Nadia G's Bitchin' Kitchen"

Natalie Zemon Davis

American-Canadian Historian

Mary LoVerde

Best-Selling Author, Life Balance Expert, Global Adventurer

Tig Notaro

Grammy Award-Nominated Stand-Up Comic, Writer, Radio Contributor & Breast Cancer Survivor

Nic Sheff

Author, Screenwriter & Recovering Addict; Known as Subject of "Beautiful Boy"

Harmony House

Josh McDowell

Christian Apologist, Evangelist & Best-Selling Author; Christian Ministry & Missions Icon

Josh McDowell Shares His Heart about the Ravi Zacharias Scandal

Liz Nead

Adventure Speaker, TV Host, Bestselling Author & Life Coach

Katie Lee

Chef, Co-Host of Food Network's "The Kitchen" & Author of "The Comfort Table: Recipes For Everyday Occasions"

Julie Dixon

Strategy, Research & Communications Consultant; Former Executive Director of Gravity Research

Morton Kondracke

Political Commentator, Journalist, Author

Harold Lloyd

Leading Expert in the Retail Industry

Chris Hastings

Chef & Owner of Hot and Hot Fish Club, James Beard Award-Winner

Rosie O'Donnell

Comedian, Actress, Author & Television Personality

Kelly Osbourne

Fashion Designer, Singer & Actress; Former Contributor to E!'s "Fashion Police"; Daughter of Ozzy and Sharon Osbourne

Malaak Compton

Activist, Philanthropist, Founder of The Angelrock Project