John Michael "Ozzy" Osbourne (born 3 December 1948) is an English singer, songwriter, and television personality. He rose to prominence during the 1970s as the lead vocalist of the heavy metal band Black Sabbath, during which period he adopted the nickname "Prince of Darkness". Osbourne was fired from Black Sabbath in 1979 due to alcohol and drug problems, but went on to have a successful solo career, releasing 12 studio albums, the first seven of which received multi-platinum certifications in the US. Osbourne has since reunited with Black Sabbath on several occasions. He rejoined in 1997 and helped record the group's final studio album, 13 (2013), before they embarked on a farewell tour that ended with a February 2017 performance in their hometown, Birmingham. His longevity and success have earned him the informal title "Godfather of Metal".
Through summoning demons from the depths of hell as the frontman of metal pioneers Black Sabbath in their best days, partying hard through the '80s and landing on a reality show focusing on his dysfunctional family in the 2000s, Ozzy Osbourne has kept on the wicked side for the majority of his decades-spanning career in evil. Starting his solo bid almost immediately after his departure from Sabbath, Ozzy turned in classic metal albums with early-'80s Randy Rhoads collaborations like Blizzard of Ozz and Diary of a Madman, and stayed consistently strong with many platinum-selling albums throughout the '90s, 2000s, and beyond.