It takes a lot of guts to wear that dress...

Taking a break from her back-to-back visits to the gym, Britney Spears took time out of her busy and moderately effective workout schedule to party it up with pals at designer Christian Audigier’s 50th birthday bash at the Peterson Museum in Los Angeles on Friday.

Rocking a way too tight, way too short strapless mini-dress, the perpetually poorly put together pop star was among the many celebs — including the likes of Fergie and Pamela Anderson – who stepped out last night to fête the high profile designer.

Britney recently sparked rumours that she’s teaming up with the Ed Hardy designer when she was spotted visiting his corporate office in Beverly Hills.

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