The alleged Katy Perry nude may be just a big old fake, but a very real nude photo of Madonna at twenty is on sale at Christie's and expected to fetch at least $10k.

Hmm... think Katy Perry would consider claiming the photo as genuine and splitting the profits with her good friend Fleshbot? Just a thought...

· Nude Photo of 20-Year-Old Madonna on Auction Block (nytimes.com, thanks B!)
· Christie's Lot 6/Sale 2139 (christies.com)

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