Jimmy Fallon, Idina Menzel, Perform 'Let It Go' With Kids'
Instruments  Backed by The Roots, the crew offer a different
take on the Oscar-winning song  By |  It's safe to assume when
Idina Menzel first sang her Academy Award-winning song "Let It
Go" from Frozen, she didn't expect to be performing the track
with Jimmy Fallon, the Roots and a set of children's
instruments. But here we are.  Oscars 2014: 25 Best and Worst
Moments  Armed with a xylophone, Casio keyboard, a triangle and
a sense of humor, the crew performed the first Tonight Show
version of a series that had become massively popular on Late
Night With Jimmy Fallon (Carly Rae Jepsen's "Call Me Maybe" has
more than 17 million views on YouTube alone).  As Hollywood
Reporter points out, Roots frontman Black Thought said that
Fallon, the Roots and the special guest determine the
arrangement "in an instant" and that where people are sitting
determines what instruments they'll play.  The Frozen soundtrack
has dominated the charts this year, hitting Number