TMZ earlier reported that Britney Spears will be engaged by tonight—and it turns out that's true. Longtime boyfriend Jason Trawick apparently popped the question last night, confirms TMZ. The news comes on the heels of this post to her Facebook wall: "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." Apparently, the 15,000+ fans who liked/commented on the post are pretty excited, too. TMZ notes that Trawick is throwing a huge dinner party at the Paris Hotel's the Chocolate Lounge in Vegas tonight, at which the men will apparently celebrate with chocolate truffle cigars. (More Britney Spears stories.)