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

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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