Credit: Racked/Curbed Network

Gossip Girl fans who pass by designer Matthew Williamson's boutique in Manhattan's Meatpacking District won't have to wait until Monday to see what Leighton Meester wears on Monday's upcoming episode. Williamson teamed up with the show's costume designer Eric Daman to create a window display at his downtown New York City store featuring a halter dress Meester's character Blair Waldorf buys at the boutique and then wears later on in the show.The dress, worn by a brunette mannequin with flowing Meester-esque tresses, is a departure from the looks Blair usually sports. “I wanted it to represent innocence, purity, vulnerability—characteristics that are not usually explored with Blair’s character,” Daman told WWD.