Ms. Stefani just turned 45. She is as stunning now as she was then. (Seriously, who has abs like that?) No Doubt never really broke up, but Gwen branched out into a solo career, clothing lines, and made a business out of being a super-sexy super-star. Despite all this success, she’s hard for even hardcore haters to hate. Beauty, talent, brains. For Gwen Stefani, life is good.