This fun song featuring a dancing 8-bit skeleton is actually a remix of what is believed to be the oldest Japanese song in the world. The song is called Kokoriko Bushi, meaning tune of a kokoriko–an ancient string instrument. The artist is Japanese electro-pop collective Omodaka of Far East Recordings; the animation is directed by Teppei Maki. If you like how it sounds, there's another fun video on TokyoMango today. (Thanks, Matt!)