Heresy were a
hardcore punk band from Nottingham, England, formed in 1985 and active until late 1989. They released three albums and recorded three sessions for John Peel's BBC Radio 1 show.
Heresy's early material merged influences from English
hardcore punk groups like
Discharge and
American extreme metal
bands like Metallica and Slayer. A fusion which led to them being categorised as
crust punk. By the time their founding vocalist Malcolm Reeves was replaced by Kalvin Piper, they had stripped away the metal influence, for a thrashcore sound influenced by Boston
hardcore, early-
Dirty Rotten Imbeciles and Siege. An article for Alternative Press described how "no band before them, harnessed
… Read more the hormonal force of
American hardcore and spiked it with metal-tipped UK82
punk". Simon Czerwinskyj, in an article for Bandcamp Daily, described the band as "proto-grind crust maniacs".