I would have sworn that Kim Newman invented the song from his book of the same title, Anno Dracula: Dracula Cha Cha Cha. (If you haven’t already, go out and pick up the entire Anno Dracula series, now available from Titan Books. It’s freaking amazing.)
But as it turns out, it’s a real song by Bruno Martino that was a minor hit back in the 60s.
The moral of the story: real life is always weirder. Always.