Extreme metal is a cross-genre term used to describe heavy metal that is considerably heavier, faster, more aggressive and more abrasive. For example; vocalists may often use death growls or high-pitched shrieks and more obscene lyrics, drummers may often use blast beats, and the band’s appearance may be intended to shock. Bands of this grouping are typically of the black metal, death metal, doom metal and thrash metal genres. The term is also used when a band is musically “extreme” enough but does not conform easily to any of the extreme metal genres; bands of this calibre include Cradle of Filth, Celtic Frost and Strapping Young Lad.