Idina Menzel, Jimmy Fallon sing "Let It Go" with classroom instruments

Fresh off her performance at Sunday's Oscars (and John Travolta's hilarious -- and cringe-inducing -- mispronunciation of her name) Idina Menzel stopped by "The Tonight Show" to sing her hit song "Let It Go" from Disney's "Frozen."

The actress got a little backup from "Tonight" host Jimmy Fallon and The Roots, who accompanied her on classroom instruments like a triangle, xylophone, tambourine and even some toy blocks.

Menzel (or should we say Adele Dazeem?) looks like she's having a great time singing the tune, which won the Oscar for best original song during the Academy Awards telecast. "Frozen" also picked up the win for best animated feature film.

Watch them all rock out below: