Oi! is a subgenre of punk rock that originated in the late 1970s in the United Kingdom. It was created as a response to the perceived commercialization of punk music and aims to represent the working-class experience. Oi! music often features anthemic choruses, straightforward melodies, and lyrics that address social and political issues, as well as everyday life. The genre is closely associated with the skinhead subculture and has roots in bands like Cock Sparrer and Sham 69. Oi! has also influenced various other music styles and has a dedicated following, particularly in Europe and South America, where it continues to thrive.