Hardcore music is a subgenre of punk rock that emerged in the late 1970s and early 1980s. It is characterized by its fast tempos, aggressive guitar riffs, and intense vocals. Bands like Black Flag and Minor Threat were pioneers of this style, which often conveys themes of rebellion and social issues. The hardcore scene is known for its DIY ethic and strong sense of community. Concerts are often energetic and can feature a style of dancing called moshing. Over the years, hardcore has influenced various other genres, including metalcore and post-hardcore, expanding its reach and impact in the music world.