Kerrang! is a UK-based magazine founded in 1981 that is devoted to rock music. It began as a supplement focused on the New Wave of British Heavy Metal and hard rock acts. In the 2000s, it became the best-selling British music newspaper. The magazine covers rock bands and genres through interviews, album reviews, and advertising for concerts and albums. It aims to appeal to its target audience of 16-21 year olds interested in rock music.