Jimmy Fallon never misses an oppertunity to create another smash viral video.

Before Sunday's Oscar telecast, not many peole knew who Idina Menzel was, but thanks to John Travolta fumbling her name, she is the new "it" girl.

Idina stopped by the "Tonight Show with Jimmy Fallon" to perfrom the smash tune "Let It Go" which won the Oscar the other night. The tune is of course from the movie "Frozen"

Backed by The Roots, Fallon and Idina perform the song using classroom instruments.

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