Simon Doonan

Author, SLATE columnist Creative Ambassador for Barneys New York

Transformer: A Story of Glitter, Glam Rock, and Loving Lou Reed

Michelle Trachtenberg

Actress; Known for "Gossip Girl," "Eurotrip" and "17 Again"

Donna Karan

Award-Winning Fashion Designer

Nina Garcia

Editor-In-Chief of Elle Magazine, Judge on "Project Runway;" Alzheimer's Awareness & Prevention Advocate

Alan Cumming

Emmy-Winning Actor Who Stars in "The Good Wife"

Alexa Chung

Model & Television Personality

Grant Achatz

Award-Winning Chef, Restaurateur & Cancer Survivor

Jenny Evans

Stress Resiliency Expert, Speaker & Author

Dr. Michael Solomon

Marketing Researcher & Consumer Behavior Specialist

Serena Williams

Iconic Professional Tennis Player & Olympic Gold Medalist; Activist, Philanthropist & Entrepreneur

Serena Williams says she intends to retire from tennis after the U.S. Open

Tamilee Webb

Fitness Expert & Instructor, Star of "BUNS OF STEEL"

Jonathan Waxman

Chef/Partner at Barbuto, Jams, Brezza Cucina, Adele's & Waxman's; Cookbook Author; TV Personality

David Tutera

Host of "Party Planner with David Tutera", Discovery Home, Life Style and Entertaining Expert

Ruben Studdard

American Idol Winner; The Biggest Loser Contestant; Dubbed the "Velvet Teddy Bear"

Ruben Studdard & Jordan Sparks - American Idol

Curtis Stone

Celebrity Chef; Host of "Top Chef Masters" on Bravo

Jaclyn Smith

Actress, Designer, Entrepreneur; Best Known As Kelly Garrett In The Iconic Television Series "Charlie's Angels"

Molly Sims

Actress, Model & Lifestyle Expert; Environmental & Ocean Activist

Gail Simmons

Culinary Expert, Food Writer, and TV Personality; Best Known as the Host of Bravo's "Top Chef"

Eric Ripert

Chef, Author & Host of "Avec Eric"

Gordon Ramsay

Celebrity Chef, Restaurateur, Cookbook Author & Judge of FOX's "MasterChef"