The recording artists, mega-divas, and new “American Idol” co-hosts are at it again, guys. After their well-publicized spat during “AI” auditions in Charlotte this past October, the negative energy between Minaj and Carey is still palpable. The other day during a press event, these two ladies just couldn't seem to stop butting heads. We're going to play referee today to see which star's style reigns supreme—keep it clean, ladies!