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!
The actress' custom-made Prada halter dress was listed on eBay on behalf of Oxfam America after she attended the 2012 Met Ball in New York City. One hundred percent of the auction's proceeds -- the winning bid was $2,950 -- went to the international relief organization aimed at eradicating poverty, hunger and injustice.