Cameron Diaz  was surrounded by love and laughter as she celebrated her 42nd birthday on Saturday. Pals Gwyneth Paltrow  and Drew Barrymore  were among the ladies who surprised Cameron with a fun celebration away from the limelight. Celebrity makeup artist Gucci Westman snapped a few Instagrams of the party, including a selfie with Drew, Rashida Jones, and Gwyneth's ex, Chris Martin . Cameron's boyfriend, Benji Madden, with whom she shared a PDA-heavy vacation  in late July, looked to be snapping a photo of Cameron as she blew out her candles.
Cameron's party isn't the first time the group has gathered this Summer. As Gucci's Instagram stream reveals, there have been many A-list dinner parties and events that Cameron has attended this season. Keep reading to see her pictures, and in honor of the blond bombshell's milestone, find out what makes Cameron the ultimate celebrity BFF .
Drew Barrymore , Gucci Westman, Lake Bell, Rashida Jones, and Chris Martin  posed for a group selfie at the birthday party.
"I want to be a Charlie's angel!" Stella McCartney  wrote in the caption for this beach snap with Cameron and Nicole Richie , which she shared on Instagram earlier in Cameron's birthday week.
Cameron and Gwyneth were captivated by polo player and Ralph Lauren  model Nacho Figueras at an event celebrating Goop's collaboration with DVF. Gwyneth hosted the event at her home in East Hampton, NY, in late August.
The gang gathered for an outdoor dinner party earlier this Summer.
Cameron blew out the candles on her birthday cake.