Britney Spears Celebrates Engagement, Shows Off Ring

The pop superstar, 30, is now engaged to her former manager, a source confirms to Us Weekly. Trawick popped the question on Thursday night, his 40th birthday, when he and the "I Wanna Go" singer shared a romantic private dinner. "Yes, we are engaged," Trawick later told Access Hollywood, adding that both he and his wife-to-be are "over the moon."


"This is something they've both wanted for a long time," the source explains to Us. "It's a way to cement their family. They're both extremely happy and can't wait to become man and wife." The spouses-to-be plan to celebrate their engagement Friday night at Planet Hollywood in Las Vegas.
Spears coyly hinted at the big news on Twitter Friday morning, writing: "OMG. Last night Jason surprised me with the one gift I've been waiting for. Can't wait to show you! SO SO SO excited!!!! Xxo"


(After wrapping her Femme Fatale world tour in Puerto Rico last weekend, Spears and Trawick -- along with Sean Preston, 6, and Jayden, 5, her sons with ex Kevin Federline -- moved to a 10,000 square-foot estate outside of L.A.)
The duo first met in 2006 in a professional capacity. Then at William Morris Endeavor Entertainment, Trawick began representing the "Hold It Against Me" singer while she was still wed to Federline, 33.


Spears, donning a short, nude Herve Leger dress, stepped out a few hours later and revealed her highly-anticipated Neil Lane sparkler during a congratulatory welcome on the hotel's mezzanine. Planet Hollywood Chairman Robert Earl presented Trawick with an oversized birthday cake in a quick ceremony.


"She wanted it to be quick because her kids where upstairs and she wanted to put them to bed," a source told PEOPLE.


Following the celebration, the duo stopped in at Sugar Factory's Chocolate Lounge where they shared a turkey burger and a club sandwich in a room closed off to the public to give the couple privacy. A line of waiters where later seen bringing a tray of cupcakes and a large sundae of ice cream covered in sprinkles.


And what better place to end the night than Paris's Chateau Nightclub. Surrounded by friends, Spears, 30, and Trawick, 40, hung out in their own private VIP table overlooking the club's dance floor.


"Britney seemed happy, holding Jason's hand," an onlooker said. They called it a night around 1 a.m.