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Of COURSE Mariah Carey Takes The Harmony Line When Singing "Happy Birthday" To Her Twins

But we're disappointed she didn't go for the whistle tones.

After some questionable live performances and a somewhat shaky "car-aoke" session with James Corden, there are some folks out there who question whether or not Mariah Carey's famous voice is gone for good. So the Elusive Chanteuse took the opportunity to silence her haters during the birthday party for her twins, Moroccan and Monroe.

Not content to just warble along to "Happy Birthday" like everyone else, Mimi tossed off an elaborate harmony line as the cake burned. Why? Because she's Mariah freakin' Carey, that's why.

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