Demi Lovato's back with a new song. Called "Let It Go," the track appears on the soundtrack for "Frozen," Disney's upcoming animated film about a young woman (voiced by Kristen Bell) who goes on an icy adventure to search for her sister (voiced by Idina Menzel). "The cold never bothered me anyway," sings Lovato on the single. Hope not! Listen below; "Frozen" is out in theaters on Nov. 27.
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