Britney Spears' New Year's Eve exit might've cost her a cool $400,000.

The lurching pop princess, according to Ben Widdicombe, won't be getting her six-figure appearance fee from Pure nightclub in Las Vegas because she "failed to spend the agreed amount of time" at Pure, and had to be carried out. What's more, Brit's official story – that she fell asleep – is making the club "furious" because it suggests that the joint is a snoozefest.

TMZ's sources say it ain't so. We're told that the club is wildly happy because they got more publicity from the incident than they ever dreamed of. A rep for Pure tells the Daily News that the Britster won't be docked for ditching the club and that the fee was actually less than $200K.