Buy This Tony Bennett Lady Gaga Nude Sketch For $5K! (PHOTOS)

Remember that Lady Gaga nude sketch (charcoal on paper) made by music legend Tony Bennett?

Tony already dished the dirty deets about the sketch after the Gaga Vanity Fair cover came out a few weeks ago.

Well, now you can have it for a couple grand on eBay. All proceeds from its sale will benefit Gaga's Born This Way Foundation and Bennett's Exploring The Arts Charity.

STORY: Sex With Gaga Is Like Being Caught In A Venus Fly Trap

Gaga and Bennett met while she was being photographed by Annie Leibovitz and the two also recorded a cute rendition of "The Lady Is A Tramp" for Tony's newest album Duets 2.

We love BlackBook's retelling of the story, so here goes:

“I walked in and said ‘Well Tony, here we are,’” Lady Gaga recalls, “And I dropped my robe and I got into position. I felt shy and thought ‘It’s Tony Bennett, why am I naked?’” (Oddly enough, the first thought most people have when meeting Bennett is: “It’s Tony Bennett, why am I wearing clothes?”)

You have until December 19th to bid, which starts at $5,000. 

SOURCE: BlackBook