It looks like Lil’s fallen off the wagon. An intoxicated Lily Allen performed at New York City’s Roseland Ballroom on Tuesday night in an event that resulted in chugging shots, tripping over her gown, and forgetting the lyrics to her own songs.

After showing up two hours late, Lily forgot the lyrics to her UK hit LDN. ‘See, I told you I was going to mess up,’ she told the crowd. “She laughed and began again…she said sorry, and it hadn’t happened before and tried to play it off like she wasn’t bothered,” says a spywitness.

A giggling Lily mocked an ex’s boyfriend’s ’size’ and dedicated a song ‘Everything Is Wonderful’ to ‘the rich ass—– who live in Washington, D.C., and up our taxes.’

The controversial artist routinely makes self-depricating V-Blogs on Myspace, as well as controversial comments toward other singers, most recent Fergie of the Black Eyed Peas.