National Socialist black metal (also known as NSBM) is black metal that promotes National Socialist (Nazi) beliefs through their lyrics and imagery. These beliefs often include: white supremacy, racial separatism, antisemitism, heterosexism, and Nazi interpretations of paganism or Satanism (Nazi mysticism). According to Mattias Gardell, NSBM musicians see "national socialism as a logical extension of the political and spiritual dissidence inherent in black metal". Others, including Josh Euclid, have expressed: "It is the sickening stain on the face of metal."