Giuliana and Bill Rancic

Stars of the reality TV show "Giuliana & Bill" on Style Network

Simon Schama

Professor of Art History and History at Columbia University in New York

Tommy Caldwell & Kevin Jorgeson

Legendary Climbers of El Capitan

Taya Kyle

Advocate for Military Veterans & Families; Widow of Former U.S. Navy SEAL Chris Kyle

Prayers for Bears: Bailey the Grateful Bear

Jeffrey A. Sonnenfeld

Senior Associate Dean for Executive Programs & Lester Crown Professor in the Practice of Management

Candace Nelson

Executive Pastry Chef and Founder of Sprinkles Cupcakes and Ice Cream; Judge on Food Network's "Cupcake Wars"

Walter R. Stahel

Architect, Editor of the Risk Management Newsletter of The Geneva Association & Sustainability Advocate

Ben Mezrich

New York Time's Best-Selling Author

David McCandless

Author of "Information Is Beautiful" & Infographics Expert

Ben Kaufman

Head of Product Labs, BuzzFeed, Founder, Quirky & Mophie

Former MythBusters Build Team: Tory Belleci, Kari Byron and Grant Imahara

MythBusters Build Team: Tory Belleci, Kari Byron and Grant Imahara

Kim Coates & Theo Rossi

Actors Known for their Roles in FX's "Sons of Anarchy"; Hosts of the Podcast #ReaperReviews

Mike & Mike

Co-Hosts of Mike and Mike in the Morning