New York, Dec 12 : Items from Lady Gaga's shoot for Vanity Fair are up for grabs at an online auction.

The pop star teamed up with Tony Bennett and Annie Leibovitz to auction off their collaborations for charity via eBay. com/celebrity.

After recording the ditty `The Lady Is a Tramp' with Bennett for his `Duets II' album, Gaga had posed nude for the crooner to paint.

Leibovitz captured the session for Vanity Fair, and also shot a series of additional Gaga fashion photos for its January issue, New York Post reported.

The auction began at 1 pm on Dec 12, and the items for sale include Bennett's original signed portrait of Gaga; the accessories Gaga wore for Leibovitz's photos, including Mercura sunglasses, House of Lavande earrings, an Alexis Bittar ring and a pair of Brian Atwood shoes; and an original print of the VF cover image of Gaga autographed by Leibovitz.

Also on the block is a Gaga-signed poster of the cover, and more. All proceeds go to Exploring the Arts and the Born This Way Foundation. (ANI)