National Socialist black metal
Appearance
National Socialist Black Metal is a subgenre of Black Metal concerned with ideas of racial separatism and the myth of the Aryan race, derived from Nazism. Most bands of this type of Black Metal have adopted variations (with varying degrees of authenticity) of pagan beliefs and traditions, believing them to face destruction by Christian beliefs. Unsurprisingly, the bands are popular among the more asocial section of disaffected youth and Neo-Nazi groups.
The NSBM FAQ http://www.nsbm.org/