The Moment: Mariah Carey beefing with Nicki Minaj as a judge on American Idol
When It Took Place: January
Why It Was Memorable: Do you remember who won last season of American Idol? Probably not. But you do remember Mariah and Nicki going at it throughout of the show, right? Of course you do. It's why neither of them agreed to come back for another season.
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