Adam Lambert crashed Lady Gaga’s birthday party — and then reportedly got kicked out! The American Idol alum wasn’t individually invited to the celebration at L.A’s La Cita Mexican restaurant, but attended as a guest of the Scissor Sisters. Witnesses told US Magazine that Adam showed up totally intoxicated. Perez Hilton explained that because of Adam’s intense fist-pumping, he actually put a hole in the ceiling. Perez Hilton said, “Adam showed up beyond drunk. Super sloppy embarrassingly drunk! Lambert began some intense fist-pumping and kept beating on the walls until he’d actually punched a hole in the building’s low ceiling. “Another eyewitness said that Lambert was acting like an animal. The witness said, “Adam acted like an animal. He kept jumping up on the tables and chairs and screaming. When they brought the cake out he tried to smear it in Gaga’s face and put a doll from the cake in her mouth!” Sources reported that Lady Gaga asked her security to kick him out — but E! News said that wasn’t true. Adam Lambert didn’t directly comment on the incident, but a few days after the party he acknowledged his behavior on his Twitter page. Adam said, “My hand still hurts. LoL. Was trying for celebratory gesture 4 gaga’s B- piñata style. . . instead my fist is all bruised and la cita has a hole in the ceiling. #sloppy. “Lady Gaga hasn’t tweeted about the incident. Reps for both Lambert and Gaga couldn’t be reached for comment.