Charles McGrath reports on Matt Harding's YouTube video:
In many ways “Dancing” is an almost perfect piece of Internet art: it’s short, pleasingly weird and so minimal in its content that it’s open to a multitude of interpretations. It could be a little commercial for one-world feel-goodism. It could be an allegory of American foreign policy: a bumptious foreigner turning up all over the world and answering just to his own inner music. Or it could be about nothing at all just a guy dancing.
Harding's website is here. I saw this a while back and assumed it would eventually die the usual Internet death. But it keeps on spreading.