A video appearing to be the isolated vocals from Mariah Carey's NBC performance Wednesday night has found its way online ... and she struggled.
The video was posted on a site called The Concourse and it seems authentic. It matches the version that aired on TV with full accompaniment.
Mariah seems fine during the meat and potatoes portion of "All I Want for Christmas is You" ... but she has difficulty when she exercises her upper octave range.
It's interesting for sure.
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