Britney Spears was at it again over the weekend, celebrating her 25th birthday in panties (thankfully), with back-up dancers and D-list posse in tow.

The incomparable pop star spend the big night with - who else - new BFF Paris Hilton, and they added another third wheel to the ho train, at least for Saturday - Fergie of the Black Eyed Peas. No Josh Duhamel, though. Sadly.

Posted in: Britney Spears