Do ya'll watch Late Night with Jimmy Fallon? We did when it first aired, but haven't really kept up regularly. I happened to stumble on this episode and this song and it's just kind of magical, and totally random. But, Chris and I can't stop singing it (but me thinks he doesn't find it humorous when I mimic the blowing into his hair bit, he reacts similarly to the girl in the audience, without the smile).
I have always found Jimmy Fallon to be funny and watch out for Jake Gyllenhaal (hello, bandana, jumpsuit, high tops and karate kicks), he is not afraid to be goofy.