Ozzy Osbourne "Necromandus", who had supported Black Sabbath in Birmingham when they were called "Earth", did backup for Osbourne in the studio and briefly became the first incarnation of his solo band. At the request of the other members, Osbourne rejoined Sabbath. The band spent five months at Sounds Interchange Studios in Toronto, Ontario, Canada, writing and recording what would become "Never Say Die!" "It took quite a long time", Iommi said. "We were getting really drugged out, doing a lot of dope. We'd go down to the sessions, and have to pack up because we were too stoned, we'd have to
Heaven & Hell Tour on this tour as a sideman. For a portion of the North American tour, which was popularly known as the "Black and Blue Tour", Black Sabbath co-headlined with Blue Öyster Cult, with whom they shared a manager, Sandy Pearlman. The arrangement reportedly set attendance records but caused friction between the two bands as well as between Black Sabbath and Pearlman. In April 1980, Black Sabbath released "Heaven and Hell", the band's ninth studio album and first with former Rainbow and Elf lead singer, Ronnie James Dio, who was hired to replace original lead singer, Ozzy Osbourne. The band began the