Last night we ended up at a party at the Bowery Hotel called Werewolf Bar Mitzvah. At 11 p.m., the line outside stretched past the Renewal on Bowery homeless shelter all the way to the N.Y.U. dorms. Mary Kate Olsen was on the dance floor. She looked to be dressed as Ashley! But it could have been the other way around! We were forbidden to ask by a bodyguard. [Photo of "Barry Manilow" by The Cobra Snake]