LADY GAGA ENDS HER TOUR WITH A BANG!

Lady Gaga ended her Radio City Music Hall stint with a bang - as if anyone expected less from the wild songstress.
"Do you think I'm sexy? Because I think you're sexy," she cooed to Sunday night's sold-out audience. The 23-year-old then added: "I'm like Tinker Bell ... I can't live without attention."

Like we couldn't tell.

At least she's using her fame - and feminine charm - for a good cause: All proceeds from he concert, including memorabilia and concession-stand sales, went to support relief efforts in Haiti.

But it wasn't all good, clean fun.

"This is my fourth and last concert here in New York, and you know what that means?" Gaga teased her fans, some of whom paid upward of $1,000 to attend the show. "I can have sex with you, and I don't have to see you in the morning!"

While no fans got that lucky (to our knowledge, anyway), some did seek a little one-on-one time with the Lady, successfully tracking her down at her after-party.

About 12:30 a.m., Gaga rolled in to Meatpacking hot spot 1Oak with a 20-member entourage, including the likes of Marc Jacobs, and a full security team.

"Word spread fast that she was there, and a ton of fans came," says a source. "Gaga's manager let some of them come into VIP and hang out with her for a little bit before closing the rope again."

That's when things really got wild: One partyer dishes that Gaga and Jacobs were seen spraying each other with bottles of Moet Rose.

"No one has seen Marc that out and about in a while - especially without Lorenzo," the source says of Jacobs' better half, publicist Lorenzo Martone. "But he and Gaga were really getting down."

And why shouldn't they be? Gaga is finishing her American tour, with only one stop left, at Purdue University in Indiana tonight. The singer was set to perform there two weeks ago, but canceled abruptly after her camp claimed she was suffering from "exhaustion."

As for her other aborted appearances, we hear the Borgata in Atlantic City is hoping to reschedule her performance, while the Mohegan Sun in Connecticut is working on a makeup date.