Cameron Diaz was in all black on Friday for a Halloween party in LA. Adding a little pop of color to her ensemble were some dollar bills tucked into her waistband, making it seem like Cameron went as a stripper! Her get-up was one of the many celebrity Halloween costumes we saw over the weekend. Cameron was able to enjoy some West Coast fun after traveling to Hollywood from NYC, where she hung out with pal Gwyneth Paltrow a few weeks ago. Cameron also visited a friend's newborn while in the Big Apple.