Vinny,
I don't know either. I have heard this GaGa story all morning on the radio, but have not heard that it concerns Madonna or if she will file a lawsuit.
To me, I see a similarity but have no idea what a judge would consider for it to be a "ripoff" of another song. Maybe one of our lawyers (DT & Kly) here would know.
Actually, I don't have music by her, but I don't mind Gaga.

TIS