"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.
Celebrity may seem like a young person's game, but there are many celebrity senior citizens still out there working, including Friday's birthday girl, 75-year-old Jane Fonda, who would beg to differ.