If music be the food of love, play on. So said a fella named Shakespeare back in 1601. And while rock & roll wouldn't be invented for about another 350 years, he may well have been on to something. After all, who doesn't like a little music to get them in the mood? And there are literally thousands of tunes from which to choose, from the hopelessly romantic to the delightfully dirty. Today, however, we take a look at some bands that don't just have the occasional ode to amour but entire discographies dedicated to deviance — the pioneers of perversion.