The "Womanizer" singer flashed her fancy diamond ring on that all-important finger while grabbing lunch with son Jayden James at Johnny Rockets.
As for the bling, Britney has yet to make any announcements (as she's worn such jewelry before with no plans to wed) - although she and boyfriend Jason Trawick recently returned from a romantic Hawaiian getaway.
Nonetheless, it's no doubt that Miss Spears was in high spirits during the day, as she was much more active on her Twitter account than usual, posting, "Happy Friday people! Am I a part of your future? -Brit"
