Although the singer was showering her beau with gifts for his 40th birthday on Thursday, she received the biggest surprise of all when Jason got down on one knee. A source confirms to People, "He surprised her after she gave him his gifts and after they had cake last night."
Britney herself hinted at the big news this morning when she tweeted: "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."
While she hasn't revealed a pic of the ring just yet, it seems like the 'Femme Fatale' singer is over the moon. Britney and Jason have been dating since 2009, and will reportedly celebrated their engagement in Las Vegas this weekend.
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