Cameron Diaz, Gwyneth Paltrow, Ben Affleck and more! See the seemingly ageless A-listers celebrating 40th birthdays this year
Jenny McCarthy (November 1)
If you've got it, flaunt it! The Love in the Wild host certainly still has it, and she didn't hesitate to show it off on the cover of Playboy earlier this summer, just a few months before her 40th birthday.
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