A report stated that the Queen of Pop invited Gaga to duet with her onstage at Yankee Stadium last month but the latter declined because . . .
she was very busy with her Born This Way Ball tour.
Gaga's manager Vincent Herbert revealed, "Madonna called to ask Gaga to perform with her at Yankee Stadium.
"Her manager reached out to us and said Madonna would like Gaga to perform with her."
He explained, "She really wished she could do it. She said, ‘If we do it, let's donate the money to charity.’ But Gaga's committed to her own tour."
We think Lady Gaga and Madonna's duet would be sensational and controversial at the same time!
Lady Gaga Declines Madonna's Invite to Duet Onstage