TMZ: Nicki Minaj Threatens To Hit Mariah Carey On Video - Philadelphia News, Weather and Sports from WTXF FOX 29

TMZ has obtained exclusively video of Nicki Minaj going off on Mariah Carey at "American Idol" auditions in Charlotte.

Minaj even threatened to hit Carey.

Carey can be heard responding to Nicki's rant, but it's not clear what she says.

Sources say producers are worried about the two coexisting this season.