Hottest Bodies 2014

So Fine at 39: Age-Defying Beach Bods

From Jenny McCarthy and Jude Law to Cameron Diaz, see which almost-40 stars are undressed to impress

CAMERON DIAZ

It's all good for the Bad Teacher star, who flaunts her ripped form during a Miami vacation with boyfriend – and workout partner – Alex Rodriguez in February. "I learned what it feels like to be strong," Diaz told Playboy of her new figure.