Before she became the Princess of Monaco, Grace Kelly was already one of the biggest names in the world. Born in Pennsylvania, Kelly moved to New York City at 20-years-old to pursue an acting career. Soon after, Kelly was Hollywood’s most in-demand actress, appearing in major films such as High Society, To Catch A Thief, Dial M For Murder, and Rear Window, the latter of which cemented the actress’s status of an on-screen fashion icon with a memorable black-and-white dress that has gone down in cinematic style history. Of course, it was hardly the only time Kelly looked glamorous on film. In honor of her birthday, take a look back at some of her most stunning photos, on-stage and off.