Cameron Diaz Bikini Pictures

Cameron Diaz turns 39 today, and we're celebrating with a look back at her sexiest bikini moments! Between her surf sessions and relaxing vacations in tropical locations, it's no surprise Cameron's often been spotted showing off her fit frame in a tiny two-piece. She's had a big year with The Green Hornet and Bad Teacher arriving in theaters, and her personal life is going great thanks to her romance with Alex Rodriguez. Happy birthday, Cameron, and here's to many more fun-filled days on the beach!