Literary Satanism

European Enlightenment, some works, such as Paradise Lost, were taken up by Romantics like Byron and described as presenting the biblical figure of Satan as an allegory representing a crisis of faith, individualism, free will, wisdom and enlightenment.[citation needed] Those works actually featuring Satan as a heroic character are fewer in number but do exist. George Bernard Shaw and Mark Twain (cf. Letters from the Earth) included such characterizations in their works long before religious Satanists took up the pen. From then on, Satan and Satanism started to gain a new meaning outside of Christianity.[3]
In music

Black metal has often been connected with Satanism, in part for the lyrical content of several bands and their frequent use of imagery often tied to left hand path beliefs (such as the inverted pentagram). More often than not musicians associating themselves with black metal say they do not believe in legitimate Satanic ideology and often profess to being atheists, agnostics, or religious skeptics.[59] In some instances, followers of right hand path religions use Satanic references for entertainment purposes and shock value.[60] Most of black metal's "first wave" bands only used Satanism for shock value; one of the few exceptions is Mercyful Fate singer King Diamond, who follows LaVeyan Satanism[61] and whom Michael Moynihan calls "one of the only performers of the '80s Satanic Metal who was more than just a poseur using a devilish image for shock value".[62] One early precursor to Satanic metal was the 1969 rock album Witchcraft Destroys Minds & Reaps Souls, which contained numerous references to Satanism that reappeared in later Satanic rock music.

Glen Benton, vocalist and bassist of the band Deicide, once openly claimed to be a practitioner of theistic Satanism, and has spoken publicly to profess staunch anti-Christian sentiment. The controversial Dissection frontman Jon Nödtveidt openly spoke about his "chaos-gnostic" satanic beliefs, being a member of the Misanthropic Luciferian Order, and called his band "the sonic propaganda unit of the MLO".[63] Norwegian black metal artists such as Euronymous from Mayhem and Infernus from Gorgoroth have also identified themselves as Satanists and actively promoted their beliefs.[64] Numerous church burnings that covered parts of Norway in the early 1990s were also attributed to youths involved in the black metal movement, which included people promoting theistic Satanic beliefs and strong anti-LaVeyan attitudes.[65] However, the legitimacy of such actions as Satanic endeavors, rather than simply rebellious actions done for publicity, is something that has been doubted by even some of those who contribute to the genre.[66]

Source : en.wikipedia.org