Dancing Matt!

"There are no weekend box office charts for online videos. But if there were, near or at the very top of the list right now might well be a four-and-a-half-minute video called "Dancing," which more than four million people have viewed on YouTube, and perhaps another million on other sites, in the just over two weeks since it appeared. It's the online equivalent of a platinum hit, seeping from one computer to the next like a virus..." (from International Herald Tribune)
2008

2006