Mariah Carey performed Wed. night (Dec. 3) at the 'Christmas in Rockefeller Center 2014' celebration. She sang her Christmas classic 'All I Want for Christmas is You!' It's one of the few newer Christmas songs that has become a standard during the holiday season. It's one of my favorites.

Mariah's performance, however, is being slammed by critics and the audience. What do you think?

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