Heavy metal music originated in the late 1960s in the UK and US, made popular by bands like Black Sabbath, Led Zeppelin, and Deep Purple. In the 1980s, many metal genres emerged like neo-classical, glam, and death metal. Key people who helped make metal famous include Ozzy Osbourne, the band Necrophagist, and Chuck Schuldiner, known as the father of death metal. Metal can be seen as strange because the lyrics often relate to negativity, death, and Satanism, and some glam metal bands featured flamboyant styles of dress.