Black Sabbath are the ultimate heavy rock band. They have sold millions of albums worldwide, with ardent fans across the globe. Dave Tangye and Graham Wright were in the crew during the seventies, the band's heyday, and have the stories to prove it. For the first time they cover in detail the early days of the group, including a certain gig in the Scottish borders, where they were almost beaten up by the local farmers. As the Sabs rose to fame and notoriety, touring Europe, Australia and America, delighting fans and disgusting law-abiding members of the public, incidents of bad behaviour stack up alarmingly. Many focus on Ozzy Osbourne, from his obsession with guns and shooting things, which led to his country house being christened Atrocity Cottage, to his amazing capacity for alcohol.

Full of new information, HOW BLACK WAS OUR SABBATH is a real Spinal Tap story, a warm, funny, poignant tribute to four mates from Birmingham who became the biggest heavy rock band in the world.