VIDEO: Idina Menzel, Jimmy Fallon & The Roots Perform 'Let It Go' w/ Classroom Instruments!

Fresh off her Oscar appearance, Idina Menzel stopped by last night's Tonight Show Music Room to perform the Oscar-winning song "Let It Go" from Disney's "Frozen", along with host Jimmy Fallon and his house band The Roots. (see Instrument list below!) Check out the unique performance below!

Jimmy Fallon - toy blocks, bass drum, Casio keyboard
Idina Menzel - triangle
Questlove - kazoo, jingle sticks
Mark Kelley - kazoo
Kamal Gray - xylophone
James Poyser - melodica
Luke - ukulele
Tuba Gooding Jr. - lemon shaker
Frank Knuckles - bongos
Black Thought -- tambourine, chimes

About The Tonight Show

Beginning Feb. 17, 2014, "The Tonight Show" returns to its New York origins when "The Tonight Show Starring Jimmy Fallon" makes its broadcast debut from Studio 6B in Rockefeller Center. Emmy Award- and Grammy Award-winning comedian Jimmy Fallon will bring a high-tempo energy to the storied NBC franchise with his welcoming interview style, love of audience participation, spot-on impersonations and innovative sketches.

An American television institution for almost 60 years, "The Tonight Show" will continue to be a home to big-name celebrity guests and a stage for top musical and comedic talent. Taking a cue from his unforgettable predecessors, including hosts Johnny Carson and Jay Leno, Fallon will carry on the tradition that audiences know and love - kicking off every show with the iconic "Tonight Show" monologue. Known for his huge online presence, Fallon will also bring along with him many of the popular segments, celebrity sketches and musical parodies that fans have grown to love on "Late Night," including #Hashtags, Thank You Notes and Slow Jam the News.

Critically praised Grammy winners The Roots will serve as "The Tonight Show" house band.

From Universal Television and Broadway Video, "The Tonight Show Starring Jimmy Fallon" is executive produced by Lorne Michaels and produced by Josh Lieb. Gavin Purcell produces. "The Tonight Show" tapes before a live studio audience.