Ozzy Osbourne: "John Michael" was an English singer, songwriter, and media personality. Dubbed the "Prince of Darkness", he co-founded the heavy metal band Black Sabbath in 1968 and rose to prominence in the 1970s as their lead vocalist. Black Sabbath is widely credited as a pioneer of heavy metal music.
Black Sabbath: Were an English heavy metal band formed in Birmingham in 1968 by guitarist Tony Iommi, drummer Bill Ward, bassist Geezer Butler and vocalist Ozzy Osbourne. After adopting the Black Sabbath name in 1969 (the band were previously named Polka Tulk Blues Band and then Earth), they distinguished themselves through occult themes with horror-inspired lyrics and down-tuned guitars. Their first three albums, Black Sabbath, Paranoid (both 1970), and Master of Reality (1971), were commercially successful, and are cited as pioneering albums in the development of heavy metal. Subsequent albums Vol. 4 (1972), Sabbath Bloody Sabbath (1973), Sabotage (1975), Technical Ecstasy (1976), and Never Say Die! (1978) saw the band explore more experimental and progressive styles.
