Cameron Diaz is officially 50, and she is embracing every moment of it. The actress was surrounded by loved ones Tuesday night at Nobu in Malibu. According to a People insider, some of the people in attendance were her husband Benji Madden, her sister-in-law Nicole Richie, Zoe Saldaña,Adele,Leslie Mann and Judd Apatow. View this post on Instagram A post shared by Cameron Diaz (@camerondiaz) The Diaz party celebrated in a private area at the celebrity hot spot “for hours.” “Cameron was wonderful. She had the best time celebrating her birthday, the source said. “Diaz and Madden were . . .