I'm delighted I found this! I remember coming across it as a kid probably around 2005. At the time I spoke no English whatsoever so I wasn't really sure what the song was about, just that it was catchy and memorable. Until now I had mistakenly remembered it being about a hippo with a bird's nest on its head... No wonder my previous searches had yielded no results. Good thing I finally thought to search for hippo videos on Newgrounds.