Apparently I missed this thing the first time around, but now it's reached me.
Saint Seiya Gold Saint Version
Lupin 3rd Version
Fullmetal Alchemist Version
Oh, what IS it? This insidiously perky Swedish poptune called "Caramelldansen" (the Caramel Dance). I CAN'T GET IT OUT OF MY HEAD! I"M DOING THE DANCE! WATCH AND BE DESTROYED!