New York drag queen Lady Bunny confounded onlookers when she and her rather enormous blonde wig turned up in the third row at Viktor & Rolf. “I’m Michelle Obama,” she said, laughing and adding she’s in town to DJ at Barbie’s anniversary party at Colette Thursday. “I’ll be Eating-Disorder Barbie,” she said. In the front row, French actress Léa Drucker, meanwhile, said she’s next appearing alongside Clémence Poésy in “Une Pièce Montée” (or “Wedding Cake”), where she plays a badly treated wife. “It happens,” Drucker deadpanned.