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In the 1980s, Ian Gillan, best known as the lead vocalist of Deep Purple, had a brief stint with the legendary heavy metal band Black Sabbath. During this time, he replaced the iconic Ozzy Osbourne as the frontman for the band. Although his tenure with Black Sabbath was relatively short, it left a lasting impact on the music industry, showcasing Gillan's versatility and talent beyond his work with Deep Purple.