Britney Spears and Jason Trawick
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In fact, the pop star's longtime love proposed on his birthday Thursday night in Los Angeles. "He surprised her after she gave him his gifts and after they had cake last night," a source says of his proposal with a Neil Lane sparkler.
Sources recently told PEOPLE that Trawick was ready to pop to the question – and that the two had "been talking about marriage for a long time."
And, early Friday, Spears started dropping hints about her big news on Twitter.�
The singer began dating Trawick, her former agent, in 2009.
Spears has two sons, Preston, 6, and Jayden, 5, with ex-husband Kevin Federline, whom she divorced in 2006.
"She's very happy. It's going to be a great weekend," says another source.�They plan to celebrate tonight in Las Vegas.�
•With reporting by MARK GRAY and ELIZABETH LEONARD
