If you're planning to attend Fashion's Night Out on September 8, you just may get a chance to mingle with celebs like Leighton Meester, Sarah Jessica Parker, Solange Knowles and more. Fashionista.com has a handy guide to where you can find all your favorite stars.For those who care more about shopping than star-gazing, don't miss Vogue's interactive map to help plan your big night out. Search by neighborhood, categories and specialty to find the must-see NYC FNO events.