Crust punk (sometimes simply crust) is one of the evolutions of anarcho-punk and hardcore punk, mixed with distorted extreme metal guitar riffs. The style, which evolved in the mid-1980s in the UK, often had songs with dark, pessimistic lyrics, lingering on the bleak aftermath of nuclear war. Crust is typically played at a fast tempo with growled and screamed vocals and anarchist lyrics. The guitar playing is similar to that used in speed metal and thrash metal. Read more on Last.fm.