Lady GaGa Wants Su-Bo Xmas Duet?
Britain's Got Talentstar to duet on a track with her.
According to the Madonna who have all sang with the Poker Face hit maker.
In other GaGa news, the singer's fitness trainer has revealed that the star likes to work out wearing heels and very unsuitable outfits.
Harley Pasternak, who has helped GaGa prepare for her exhausting Monster Ball tour told heat magazine: "She came to me because she wanted to find a lifestyle that was healthy and something she could handle while she was on the road."
He added: "I'll never forget the time I looked out of office door and there was was. She was dressed in a pair of 12-inch heeled boots, shooting basketball hoops."
Pasternak also claimed that GaGa, real name Stefani Germanotta has a sweet tooth, with her favourite treats being potato chips and peanut butter.
