Gaga strips down for Tony

Lady Gaga has revealed she had posed nude for American singer Tony Bennett so that he could sketch her.

"I walked in and said, ‘Well Tony here we are,' and I dropped my robe and I got into position. I felt shy and thought, ‘It's Tony Bennett, why am I naked?" femalefirst.co.uk quoted Gaga as saying.

The pictures that Bennett sketched of Gaga, 25, will be published in Vanity Fair magazine next year.