The New Wave of British Heavy Metal (frequently abbreviated as NWOBHM) is a heavy metal music movement that started in the late 1970s, in Britain, and achieved some international attention by the early 1980s. The era developed as a reaction in part to the decline of early heavy metal bands such as Deep Purple, Led Zeppelin and Black Sabbath. NWOBHM bands toned down the blues influences of earlier acts, increased the tempo, and adopted a "tougher" sound, taking a harder approach to its music. It was a scene directed almost exclusively at heavy metal fans. The era is considered to be a main foundation for heavy metal sub-genres with acts such as Metallica citing NWOBHM bands like Saxon, Diamond Head, Motörhead and Iron Maiden as a major influence on their musical style.
The early movement was associated with acts such as: Iron Maiden, Saxon, Motörhead, Def Leppard, Angel Witch, Tygers of Pan Tang, Blitzkrieg, Avenger, Sweet Savage, Girlschool, Jaguar…