That is a sick way of displaying the Devil. Also according to my source Anton La Vey (the author of the modern day satanic bible) there are four kings (or generals) of hell. Or more actually The four names by which the devil is most aptly called.
Ps. Sick as in cool. And the refference/source was only an entertainment read. I'm not an actual Satanist nor an expert on the subject.
My opinion on the matter is that there is so many different sources, and demonology is such a rceycled patchwork of different religions and cultures, that we are more or less allowed to interpret that as we want . I mean, more than Egyptian or Greek mythology, for example.