One Is the Loneliest Number

I am very much not a fan of Jimmy Fallon, but I do respect him for having the Muppets on his show pretty often. Just before Christmas, he, the Muppets, and the Roots did a nice performance of "The 12 Days of Christmas." Well, today NBC released this video of the rehearsal, in which Fallon and the Muppets (and the Roots) break into an impromptu performance of "One." And like anything to do with the Muppets, a big smile was plastered all over mah face.