A newly single Britney Spears remains in New York City for the conclusion of Fall Fashion Week and according to celeb snitches the Toxic singer has been “partying like a college girl looking to get laid.”

After purchasing a pink rabbit jacket from Zitomer Department Store, Brit and her friends had dinner at touristy Rue 57. Then it was over to Marquee, where sources said she was dancing with her girlfriends and “demanded all alcohol be kept far away from her.”

“She must have been drinking secretly in the bathroom,” said one. “Because she was falling all over the place. She was also chomping on lollipops from the bathroom all night. And she didn’t leave any money for the bathroom attendant,” says a partying snitch.

At 2:30 am, B.S and Co ended up a Tenuje Nightclub in the city, “Britney was completely hammered,” said a witness.

And the Pop Princess apparently picked up a stalker along the way. A spy reports Britney’s entourage being followed all night by a “scruffy looking guy.

” He was hitting on her all night, but she wouldn’t even look at him. Then a model guy came to her table and she started making out with him,” sources report. Brit ended the night with a trip to Mickey D’s.

Reps for Tenjune said, “Britney was here, but she was not drinking.” A rep for Spears told us, “Britney was at Marquee with friends.” Marquee had no comment.