at all the Madonna stans and Gaga haters trying to reinterpret his shade and pass it off like it was insulting Gaga. It was clearly a joke at Madonna's expense and interpreted that way by the audience and any logical human being, no matter how much you'd like to think otherwise.
But y'all need to read the follow up and how he then talked about his experience with NBC. He's emphasizing the "erase" part. The joke was directed in the notion that Gaga replaced Madonna, not as in Gaga is a clone.