Idina Menzel, Jimmy Fallon, The Roots play 'Let It Go' with classroom instruments on 'The Tonight Show'

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Long Island native Idina Menzel follows up her Academy Awards performance of the Oscar-winning song "Let It Go," from Disney's "Frozen," on the March 3, 2014 "Tonight Show" -- this time with the help of host Jimmy Fallon and The Roots, on kids' classroom instruments.

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