Matt Damon

Actor, Screenwriter & Producer; Co-Founder of Water.org; Expert Advocate on Global Water & Sanitation Crisis

Keegan-Michael Key

Actor, Producer, Writer & Comedian

Willie Nelson

Country Music Singer-Songwriter Known for "On The Road Again" & "Always On My Mind"

Pierce Brosnan

Actor, Producer & Activist; Best Known for His Role as James Bond

Christian Bale

Academy Award Winner Actor Best Known for the "Dark Knight" and "The Fighter"

Eric Stonestreet

Actor & Comedian, Best-Known for "Modern Family"

Martin Sheen

Award-Winning Actor Known for "The West Wing" & "Grace and Frankie;" Social Activist & Humanitarian

Joey Bada$$

Hip Hop Artist & Founding Member of the Hip Hop Collective Pro Era

Portugal. The Man

Rock Band Known for Singles Like "People Say" and "So American"

Anna Paquin

Actress Best Known for "True Blood" and for the X-Men Franchise

Tamron Hall

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

Watch Where They Hide

Alfonso Ribeiro

Host of America’s Funniest Home Videos, Actor, TV Director, Award-Winning Dancer & Broadway Star

Cesar Millan

Host of The Dog Whisperer; Author of Cesar's Way

Amy Smart

Actress, Environmentalist & Co-Founder of Smart House Collections

Kelly Wearstler

Interior and Fashion Designer

Moby

Musician, DJ, Photographer

Vandana Shiva

World-Renowned Environmental Leader

Kevin Nealon

Former Cast Member of 'Saturday Night Live'; Co-Star on Showtime's "Weeds"

Torrey DeVitto

Actress, Model, Ambassador for NHPCO & Advocate

Joey Lawrence

Actor, Singer & TV Host; Known for his Role in "Melissa & Joey"