The 42-year-old actress has traded in her sunny California style for a darker look, debuting her chestnut brown hair color over the weekend during date night with hubby Benji Madden.
The usually-blonde beauty paired her brunette locks with a black dress, dark blazer, black booties and tights. But, it's her accessories that caught our eye!
Not only was the "Sex Tape" star sporting some spiky gold earrings and necklace, but she also had a diamond stud in her nose. Maybe Benji's rocker style is rubbing off on Cam?!
Diaz is clearly comfortable in her own skin, and she has no qualms about spilling dirty details about her sex life either.
The veteran actress graces the cover of Cosmopolitan UK's "Love Your Body" issue, where she opens up about how she stays fit and healthy with a combination of diet, exercise, and, yes, gettin' busy.
"It's something healthy that we need to be doing for many different reasons," the actress tells the mag about her active sex life.
While she enjoys getting busy between the sheets, the newlywed also credits regular exercise to keeping her in shape.
"You have to just do it," she explains. "Once you commit and really put in the effort, your body goes, 'Oh, it's not okay to be without this.' People say, 'My body rejects exercise.' No, it doesn't. Your mind rejects exercise."
In terms of diet, the newlywed reveals it's all about moderation. "Well-being is an equation," she explains. "Remember, you don't have to have the whole cake, you can have a piece. Don't deprive yourself. Have fun. Just be self-aware. If your equation is 80 percent good, 20 percent bad most of the time, then a little movement toward the center isn't going to affect you much."