He tells Playboy magazine, "I was so (angry) about that I was deliberately going to fall onstage and hopefully my dress would fall off or something.
"The plan had been that I was going to sing as Cher and then Cher was going to come out onstage, that got axed when Cher and the song from Burlesque weren't nominated. I told them, 'Look, this is the thing people are going to talk about, the images they will take away from the show.'
"I just didn't want to fight anymore, even when they said, 'You'll come out as Marilyn Monroe. It'll be funny.' Me in drag is not funny. Me in drag as Cher trying to sing like her is a thing. That didn't happen, so then I just didn't want to argue anymore. I was going with their programme. I wanted to do the material they gave me, not be one of the many cooks doing the writing.
"There were a lot of cooks who shouldn't have been cooking but were allowed to. There were some cooks my manager tried to bring in, like Judd Apatow, who wrote some very funny stuff that wasn't used."