"The Lambeth Walk", a song from the 1937 musical Me and My Girl, led to the creation of a popular dance of the time in England, which was performed "in a jaunty, strutting style." So far about as interesting as the Macarena will be in fifty years (in fact, I'm flinching right now from referencing the Macarena [seriously, what the hell is my problem?]), except for the fact that a few years later, the British Ministry of Information released a short film featuring "The Lambeth Walk" and some other folks known for walking around in a jaunty, strutting style:
It's a proto-remix!
The Wiki article describes it as a propaganda film, which I think is a pretty loaded term (although I can't think of a more accurate one to describe media released by the government to reflect a certain political view, despite that view being pretty cut-and-dry), but I'm generally in favor of propaganda that makes Nazis look foolish. Score one for Minitrue!
Just for the sake of comparison, here's the number from the 1987 Broadway revival: