Mayhem, the Norwegian pioneers responsible for invigorating the global Metal scene, alongside the likes of Venom, Celtic Frost and Bathory, formed in 1984. With a long history of tragedy, intrigue and infamy behind them, the band have become truly revered legends of Black Metal, with a large part of their legacy established in the late 1980s & early 1990s (when guitarist Euronymous and bassist Necrobutcher welcomed Hellhammer on drums and Dead on vocals, to help shape a new era of darkness and Armageddon). Henhouse Recordings contains tracks from Mayhem's rehearsal sessions from 1989, featuring material from the Deathcrush release, and also tracks which would eventually surface in 1994 on the band's debut album, De Mysteriis Dom Sathanas. A never-released track is also included, parts of which would later be used by Norwegian legends, Emperor. One of only a handful of Mayhem recordings to feature iconic vocalist, Per "Dead" Ohlin before his suicide in 1991, Henhouse Recordings is another essential piece of Black Metal history.