Nicki Minaj Is Officially An American Idol Judge, Mariah Carey Already Hates Her

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THIS JUST NOT IN: Women hate each other. TMZ reports:

Mariah Carey wasted no time proving what we told you 2 weeks ago — there’s only room for one diva on “American Idol.” Carey and Nicki Minaj went at it during the first “A.I.” taping Sunday in NYC. When Nicki started critiquing a contestant, Mariah would interrupt — not once, but many times. Each time Mariah interrupted, Nicki fought back by loudly talking over Mariah. One “A.I.” spy said Mariah and Nicki tried to cover their disdain for each other but everyone saw through it, adding, “These girls just don’t like each other.”

So I guess American Idol is adding a costume competition this year, because that’s the only way I can see why anyone would think Nicki Minaj could judge a nationally televised karaoke competition. But as it turns out, it’ll be just two catty black chicks talking over each other. Not sure why they don’t just move this show to VH1.