Lady GaGa has hinted that she might collaborate with Madonna.
The 51-year-old recently praised GaGa, saying that she 'saw herself' in the 'LoveGame' star, to which the latter has now responded.
"Madonna is great," Angry Ape quotes her as saying. "And I guess I could say we are friends. I love her daughter Lourdes. She is such a lovely young girl. She came to my show with her mum and we got along famously.