We’ve all seen the photo ops, heard the sound bites, and listened to the well meaning single du jour on the radio.
But which celebrities are really serious about changing the world?
Whether their philanthropic endeavors are high-profile or they pitch in quietly, away from the cameras, here are 20 celebs that make a difference:
#1 – Bono
An obvious choice? Sure. U2 frontman Bono has been a Nobel Peace Prize nominee and a Time Magazine Man of the Year. His activism for causes such as Third World debt relief and AIDS prevention are now as equally famous as his music.