Idina Menzel made a splash at the Oscars Sunday night, thanks to John Travolta's monumental screw up of her name.

Idina Menzel made a splash at the Oscars Sunday night, thanks to John Travolta’s monumental screw up of her name.

Jimmy Fallon may have a new show, but he’s up to old tricks again. He and Tonight Show houseband The Roots were joined by Idina Menzel to perform the hit song “Let It Go” from “Frozen” soundtrack.

Of course, Fallon and the band broke out the pre-school instruments for the tune.

The talk show host has added his own signature arrangement to such songs as Carley Rae Jepsen’s “Call Me, Maybe” and Robin Thicke’s “Blurred Lines” with hilarious, and always tuneful results.

After Fallon took over the “Tonight Show” from Jay Leno, there was some question whether he would overhaul the format of his late show. But he’s merely transplanted his shtick, lock, stock and barrel.

This is one part of his old show, we’re glad to see him keep.

Menzel, moderately famous as a singer before her performance of “Let It Go” on the Oscars, is now etched indelibly in everyone’s mind thanks to John Travolta.

Called on to announce her Oscar performance, Travolta, 60, infamously butchered her name, calling her “Adele Dazim.” Where that came from is anyone’s guess. But, well, everyone definitely knows her now.

Check out the performance below and be sure to follow TheImproper on Twitter for the latest television news. Or, subscribe to TheImproper’s FREE newsletter for all the latest pop culture news. We promise never to spam you, honest.

Footnote: Yes, Jimmy adds some percussion with three childrens’ blocks.