“Angel of Death” is the opening track on the American thrash metal band Slayer‘s 1986 album Reign in Blood. The lyrics and music were written by Slayer guitarist, Jeff Hanneman and are based on Nazi physician Josef Mengele, who conducted human experiments at the Auschwitz concentration camp during World War II. “Angel of Death” led to the band facing accusations of Nazi sympathizing and racism throughout their career.
Despite the controversy surrounding the song and its contribution to the delay in the release of Reign in Blood, “Angel of Death” is featured on all of Slayer’s live albums and DVDs and has appeared in several movies. The song was well received by critics; Steve Huey of AllMusic described it as a “classic.”