Celebrity Best Friends | YourTango

After starring together in Charlie's Angels, Cameron Diaz and Drew Barrymore have been gal pals. From gettin' high in Hawaii to Coldplay concerts, these former Angels have been known to have a little too much fun sometimes. "She's my sister, but we bro out and have crazy adventures," Drew said to Cosmopolitan. "I always know that she is game. Most people don't know this, but she's very edgy. . . . That has been a big part of our friendship, knowing that she will throw down at any time as well as that sisterly, cozy, nurturing love that we have."

Before fiancé Will Kopelman proposed to Drew, he first asked Cameron for permission to marry her friend (she gave him her heartfelt blessing, of course), and Cameron was right by her side to help with the wedding planning, and when Drew found out she was expecting, Cameron threw her bestie a baby shower!