"Meet Little Mariah!" she wrote on Twitter. "It was a dream come true helping to create this character in my upcoming animated movie!"
The photo shows Carey's animated counterpart wearing a blue coat and matching beret, posing with a snow-dog dressed up in pink bows.
The animated movie's official Twitter page has been sharing sneak peeks at the other characters in recent weeks, including young Mariah's parents, siblings, and friends.
"All I Want For Christmas Is You" is slated to arrive on Blu-ray, DVD, and on demand this holiday season.
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