Cameron Diaz, Nicole Richie, Gwyneth Paltrow, & Drew Barrymore Have an A-List Girl's Night Out!

Cameron Diaz, Nicole Richie, Gwyneth Paltrow, and Drew Barrymore walk single file out of Katsuya after dining out on Monday (February 2) in Los Angeles.

If you didn’t know, the four ladies are good friends and Cameron and Nicole are now sister-in-laws after her wedding to Benji Madden earlier this year.

PHOTOS: Check out the latest pics of Cameron Diaz

Nicole, meanwhile, just returned from a trip to Dubai, which she documented on her Twitter account.

FYI: Drew is wearing Madewell jeans.

10+ pictures inside of the A-list night out with Cameron Diaz, Nicole Richie, Gwyneth Paltrow, and Drew Barrymore…