Idina Menzel joined Jimmy Fallon and his house band The Roots for a version of her hit single "Let It Go" from Disney's Frozen.

Playing the tune on school instruments with a beat provided by an old Casio-style keyboard, the group grooved during a taped segment that aired on Monday night's episode of The Tonight Show.

"Let It Go" won the award for Best Song during Sunday night's Oscars, where Menzel gave a rousing performance of the hit after John Travolta introduced her as "Adele Dazeem."