Thrash metal
Twisted Sister is generally classified as heavy metal glam metal, hard rock, shock rock, and glam rock. Despite its classification as a glam metal band, Greg Prato of AllMusic compared the band's debut album "Under the Blade" to early 1980s new wave of British heavy metal. Moreover, despite the disdain that thrash metal musicians and fans in the 1980s had towards glam metal, Twisted Sister bridged the gap and could appeal to both thrash metal and glam metal fans, with thrash metal band Metallica even opening for Twisted Sister in the 1980s, despite Metallica's disdain for glam metal music at the time. Thrash metal bands Anthrax and Overkill had covered Twisted Sister songs. Snider spoke about this, saying: