Happy birthday, Gwen Stefani! The positively ageless performer turns 45 today. Best known for being the frontwoman of No Doubt, Stefani has certainly come a long way since her combat boot-wearing and mesh top-rocking days (though we're still big fans of her punk rock roots!) The Voice coach and L.A.M.B. designer can put a glamorous spin on any outfit, as we saw at this year's VMAs and Emmys, and isn't afraid to stand out—in fact, her signature edgy-chic look is her trademark. "I'm the girl who would wear baggy jeans but didn't forget to put on tons of makeup," Stefani has said of her early days with No Doubt. And we wouldn't want it any other way!