Caught on Tape: Nicki Minaj Goes Off On Mariah Carey

Who didn't see this coming? It's being reported that Nicki Minaj snapped on Mariah Carey after Mariah called Nicki an actress on the set of the American Idol auditions. You can hear Nicki Minaj say, "think it's a joke" repeatedly....um, you're wearing a pink wig, how are you not a joke?!