Lady Gaga

Award-Winning Pop Singer-Songwriter

Lady Gaga's Emotional Speech on Surviving Sexual Assault & Mental Health

Oprah Winfrey

CEO of Oprah Winfrey Network, Presidential Medal of Freedom Recipient & National Women's Hall of Famer

Ashton Kutcher

Actor, Producer, Investor & Activist

Emma Gonzalez

Activist & Advocate for Gun Control

Leonardo DiCaprio

Award-Winning Actor & Environmentalist

Leonardo DiCaprio winning Best Actor

Selena Gomez

Actress & Singer; Best Known for "Wizards of Waverly Place"

Emma Watson

Actress, Model & Activist; UN Women Goodwill Ambassador; Co-Founder of the HeForShe Campaign

Emma Watson at the HeForShe Campaign 2014 - Official UN Video ...

Sarah McLachlan

Canadian Singer/Songwriter and Activist

Mariska Hargitay

Emmy Award-winning Actress & Philanthropist; Known for "Law and Order: Special Victims Unit"

Chaz Bono

Transgender, LGBT Rights Advocate, Author, Speaker

Geoffrey Canada

Inner-City Youth & Education Advocate

Linda Rottenberg

Co-Founder and CEO of Endeavor

Lauren Bush Lauren

Founder & CEO of FEED Projects; Model & Fashion Designer; Granddaughter of Former President George H. W. Bush

Lauren Bush Lauren On Her Campaign 'FEED' To Help Feed ...

John Legend

Ten-Time Grammy Award Winning Musician & Philanthropist

Peter Diamandis

Founder & Executive Chairman of the XPRIZE Foundation; Author; Named One of The World's 50 Greatest Leaders

How to Think Bigger - Peter Diamandis - Thinking Big and Bold

Melinda French Gates

Co-Chair of the Bill & Melinda Gates Foundation

Tim Tebow

ESPN College Football Analyst; Heisman Trophy Winner; Former Quarterback for NFL's Denver Broncos & Baseball Outfielder for the New York Mets

Steve Harvey

Talk Show Host & Producer

Rebecca Minkoff

Fashion Designer & Founder of Rebecca Minkoff

Dr. Dean Ornish

Physician & Leading Researcher in Healthcare; Founder of the Preventive Medicine Research Institute & Bestselling Author of "Program for Reversing Heart Disease"