Britpop is a type of alternative rock that started in the United Kingdom. Britpop came out of the British independent music scene of the 1990s and affected, or changed, by British guitar pop music of the 1960s and 1970s. This kind of music began as a reaction against some trends, or styles, in the late 1980s and early 1990s, such as grunge from the United States. After American grunge bands such as Nirvana came to Britain, many British bands acted as opposites to the American bands, and wrote about only British topics and concerns.