Putting their money where their mouths are! In addition to walking the red carpet and living the glamorous life, these celebrities, including Angelina Jolie, Lauren Conrad, and Matt Damon, are working hard to make the world a better place. Read up on their charities!
Matt Damon and Gary White co-founded non-profit Water.org, an organization pioneering innovative solutions to provide people across the world with access to safe water and sanitation. "I'm dedicated to raising global consciousness about the magnitude of this challenge and the solutions," says Damon. "I have four girls of my own and I want them be proud of the impact I'm making in the world."