Kerrang! is a UK-based magazine devoted to rock music published by Bauer Media Group. It was first published on 6 June 1981 as a one-off supplement in the Sounds newspaper. Named after the onomatopoeic word that derives from the sound made when playing a power chord on an electric guitar, Kerrang! was initially devoted to the New Wave of British Heavy Metal and the rise of hard rock acts. In the early 2000s it became the best-selling British music newspaper