These Swedish black-metal titans are well-known masters of brain-melting lyrics, brutal riffage, and blood-spattered torsos, but who inspired all of that? Our playlist uncovers a host of Watain faves, such as early goth-punks Christian Death, punk-metal slammers Bahary, ex-Manson family man Bobby BeauSoleil, and superstars familiar with the dark arts, such as Black Sabbath and Metallica.