"American Idol" judges Nicki Minaj and Mariah Carey are none too fond of each other. Check out these other notable celebrity feuds.
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ABC American Music Awards 2011
"American Idol" newcomer Nicki Minaj unleashed a tirade against fellow co-star Mariah Carey on Oct. 2, 2012, ultimately threatening to punch the singer out after the two new judges disagreed over a contestant's performance.
Before heading out to see Brad Pitt's latest film, the zombie action thriller "World War Z," join us for a look back at the three-time Oscar nominee's career so far.