(May 14) Britney leaving "X Factor dinner" at ABC Kitchen in New York

Yesterday, FOX finally confirmed the long-awaited news that Britney Spears and Demi Lovato will join Simon Cowell and L.A. Reid on The X Factor this fall, replacing ousted judges Paula Abdul and Nicole Scherzinger.

The announcement was made during the afternoon, at the network’s Upfronts presentation in New York, which meant the fabulous foursome had plenty of time to enjoy the bright lights of New York in the evening.
So, where did they go?

Restaurant onlookers can exclusively reveal to Celebuzz that the four judges enjoyed a relaxed dinner together in the back of ABC Kitchen, where they stayed for about four hours.
“They were very talkative and enjoying it,” said one source. “They arrived mid-evening, around 8-ish, and stayed until late.”

Spears, 30, looked “amazing,” said an onlooker, donning a black dress (her third of the day) with her hair up. The Womanizer singer reportedly spent a lot of her time talking and joking around with Cowell, 52, while Lovato, 19, chatted it up with Reid.
“All four looked like they were getting on well and relaxed,” said the restaurant onlooker.
Cowell reportedly sat in between Spears and Lovato, and sipped on Sapporo beer.
Reid, 55, was the first to leave the restaurant, and was followed by Spears, who left with her managers. Cowell and Lovato left at the same time, said onlookers.