Grindcore is a genre of metal with blazing guitars, blast beats, and short song lengths. In the 1980's, bands such as Carcass, Agoraphobic Nosebleed and Last Days of Humanity revolutionized the sound with blast beats, provocative lyrics, and down-tuned guitars. Later, subgenres of grindcore such as electrogrind, mathcore, and other genres diverged with newer influences and styles. It is most prevalent today in North America and Europe, with popular contributors such as Brutal Truth and Nasum. Lyrical themes range from a primary focus on social and political concerns, to gory subject matter and black humor.

Most Grindcore bands are fiercely anti-racist, environmentalist, and feminist, moreso focusing on real-world issues, rather than offensive subject matters.

Indonesian President Joko Widodo wearing a Grindcore shirt.