Michael Phelps

Retired Professional Swimmer; Most Decorated Olympic Athlete in History

Kim Kardashian

Reality TV Personality, Fashionista, Mother

Kourtney Kardashian

Reality TV Star, Mother, Healthy Living Advocate

Ryan Seacrest

Radio Personality, TV Host & Producer Best Known for "American Idol" and "On Air with Ryan Seacrest"

Tamron Hall

Award-Winning Journalist; Former National News Anchor for NBC News; Host of the "Tamron Hall Show"

Troy Aikman

Former Dallas Cowboys Quarterback & NFL Hall of Fame Inductee; Emmy-Nominated Commentator on Fox Sports

Ted Turner

Media Mogul & Philanthropist

Katharine McPhee

American Pop Singer, Songwriter and Actress; Known for Her Role on NBC's "Smash"

Joy-Ann Reid

MSNBC Correspondent, Political Author & Former Host of "The Reid Report"

Kimberly Guilfoyle

Conservative Journalist, TV Personality & Former Co-Host of "The Five"

Ronan Farrow

Investigative Reporter, Activist & Lawyer

Darren Woodson

Three-Time Super Bowl Champion & Five-Time Pro Bowl Selection; ESPN NFL Analyst; Founder & CEO, Counter Find

DeMarcus Ware & Darren Woodson: Hall Of Fame Finalist Press ...

DJ Pauly D

DJ and Former Cast Member of MTV's "The Jersey Shore"

Keith Olbermann

Award-Winning Host of "Olbermann"

Jane Pauley

Emmy Award-winning Broadcast Journalist & Mental Health Advocate

Anna Kournikova

International Tennis Icon, Health & Fitness Advocate, Former World #1 Doubles Player and #8 Singles Player; Former Co-Host on NBC’s “The Biggest” Loser (2011), Named to the Forbes “Power 100” in 2000

Debbie Gibson

Singer-Songwriter and Reality TV Star; "Only In My Dreams"

Cristina Saralegui

Journalist, Actress, Author & TV Personality; Best Known for "The Cristina Show"

Aubrey O'Day

Former member of Danity Kane, Pop Artist

MythBusters Hosts

Jamie Hyneman and Adam Savage