Nicki Minaj Curses at Mariah Carey on American Idol [VIDEO]

All the buzz today is about the big feud on American Idol. The two ladies get into a little spat.

You can't quite hear what Nicki Minaj is shouting at Mariah Carey, but folks who were there say she threatens to "knock you out". She can also be heard shouting nasty words saying she would "not put up with her highness over there".