Today, Angelina Jolie celebrates her 37th birthday and we want to know — what's her superwoman secret? From devoted mom of six, to newly minted director, to tireless humanitarian activist, we're taking a closer look at one of Hollywood's most celebrated — and beautiful — actress's red-carpet style evolution. Since Angelina has grown up in the public eye, we've seen her morph from gangly girl in her teens to gothic princess in her 20s through motherhood and her relationship with Brad Pitt. The current Angelina impresses us regularly with her affinity to thigh-high accented Atelier Versace gowns (her now memorable Oscars 2012 appearance was not her first foray in leggy territory), slinky Jenny Packham numbers, and classically chic Ralph & Russo creations. Click our slideshow to see Angelina's style transformation now.