Things are about to go from bad to worse in the saga of Britney Spears, according to Rush and Molloy of the New York Daily News. While the beleaguered pop princess is holed up in rehab, celeb snipers are bidding on pix of the fading star's bare behind. The asking price for the shots -- which show Britney playing dress-up with two dancers at New York's nightclub One in February -- hovers at $150,000. But even more damaging is video footage that may follow: Britney's dancer buddies are telling friends that the club let them go when management reportedly discovered a security video of them doing some serious partying with the mother of two. The Daily News spy and the club disagree over whether the dancers were fired. Said another source: "If that thing goes on the Internet, there's going to be big trouble. It might be what they need to take [Spears'] kids away from her." Calls to Spears' rep and to one of the dancers were not returned.