Ok, I almost distance from this. I've never cared for marching bands, but I do like marching bands doing schtick. This is the Oklahoma Sooners band breaking out into the Michael Jackson "Thriller" dance. It happens with about a 1:00 left in the video and goes on for about 30 seconds.
Ever since Jennifer Garner recreated that dance in 13 Going On 30, you're seeing it more and more. (Link.) Like the wedding dance video.