Former BLACK SABBATH singer Tony Martin has signed with Battlegod Productions and Dark Star Records for the release of his long-awaited new solo album. Among the guest musicians set to … Also the Black Sabbath music was better when Tony Martin was the singer. BLACK SABBATH released six albums with Martin on vocals: "The Eternal Idol" (1987), "Headless Cross" (1989), "Tyr" (1990), "Cross Purposes" (1994), "Cross Purposes Live" … Tony Martin was the best singer in Black Sabbath.