Following reports that Britney Spears' prospects for a headlining show in Las Vegas were looking unlikely, the singer now seems to be teasing some sort of impending announcement about a Sin City deal.

Writing on Twitter, Britney retweeted a tweet from her dog, Hannah, who has her own Twitter account.  "Mommy, are dogs allowed to gamble in vegas?" wrote the pooch...or whoever tweets for her.  "Gonna cash all my bones in for chips."

Britney responded, "I don't think so honey," but then added the hashtag "#VivaLasVegas."

While a rep for Caesars Entertainment has stated that the company was not in talks with Britney, there is reportedly still a deal on the table for her to headline at Planet Hollywood.  Stay tuned.