Backdoor Britney?

1/17/2007 6:20 PM PST BY TMZ STAFF
After conquering the Vegas scene, Britney Spears brought the party back to Hollywood last night, secretly raging at Privilege nightclub in West Hollywood.

Unusually camera shy and rocking a pretty conservative outfit (for Britney at least), Spears snuck in and out of the nightclub with her usual entourage of bodyguards and galpals.

Good thing she's not pregnant.