Gwyneth Paltrow And Cameron Diaz Rock All Black Everything To Show Off Their Fresh Mode (PHOTOS)

Gwyneth Paltrow and Cameron Diaz had a great time last night during the launch of Mayfair's 'The Arts Club' while at a drinks reception.

The two Hollywood homies sipped drinks all night long and pretended to be invisible, as the cameras flashed away when they walked to their cars. 

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Let's hope that Gwyneth won't have a hangover like she did when she hopped on the plane to head overseas. The Contagion actresses tweeted:

"Nursing a horrific hangover at the jfk. Nothing like starting an overseas flight dehydrated. Where is the dog, I need the hair." 

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Always ones for jokes, when Gwyneth hooked up with Amy Winehouse's old band, Ronson and The Knights, she made a funny when she sang Cee-Lo's "F*ck You" song, joking, "Excuse the language in that song — don't tell the Queen!"

Don't worry, your secret is safe with us!

Check out these pictures of Gwyneth and Cameron in the accompanying gallery!

Photos

Gwyneth Paltrow And Cameron Diaz Have A Girls' Night Out In London (PHOTOS)