From: ADVOCATE

2. He made his debut with the Ronnie and the Red Caps in the 1950s, and spent most of the 1960s with the Ronnie and the Prophets. (*) He then emerged as the lead singer of Elf and Rainbow during the early 1970s. Since 1979, he has alternated between fronting a self-named band and being the lead singer of Black Sabbath. ................
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