Ozzy Osbourne is the lead vocalist of the pioneering heavy metal band Black Sabbath and the star of the reality show, The Osbournes. In addition to lead vocals with Black Sabbath, Osbourne also plays the harmonica and synthesizer.
As a solo artist, Osbourne has sold over 27 million albums in the US, and 50 million worldwide. Two of his albums, Blizzard of Ozz (1980) and No More Tears (1991), are certified quadruple-platinum, for sales of over 4 million copies in the US. (Source: Wikipedia)