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!
"When I started on [Law & Order: SVU], people asked me how I dealt with all the horrible subject matter. I deal with it by doing something about it," she says. Her Joyful Heart foundation -- launched in 2004 -- supports survivors of sexual assault, domestic violence and child abuse.