Madonna, Lady Gaga take live TV catfight to NY bash

Madonna and Lady Gaga reportedly took their catfight from live TV to a birthday bash in New York City.

The singers previously drew gasps from the audience as they broke into a fierce brawl on Saturday Night Live, but it turned out to be a skit for the US hit show.

The "warring" stars continued the fight as they purportedly got into a one-on-one dance-off at a SoHo party for Madonna's manager, Guy Oseary.

"[Deejay] Jus Ske was joking around and alternating their songs Holiday and Poker Face,' and then they both started going at it," the New York Post quoted an onlooker as saying.

"Madonna seemed to be the winner. People were going wild," the onlooker added.