Jorma Fillion Jimmy Fallon invited Adele Dazeem Idina Menzel to sing her Oscar-winning anthem "Let It Go" (from Frozen) Monday night, backed by the legendary Roots crew playing toy instruments.

This is the latest in a series of classroom instrument covers from Fallon—although the first since he took over the Tonight Show—and if you don't think it's way better than the Dani Lovutro Demi Lovato version, you're crazier than John Travolta.

[H/T: Most Watched Today]