John Michael "Ozzy" Osbourne (3 December 1948 – 22 July 2025) was an English singer, songwriter, and media personality. He co-founded the pioneering heavy metal band Black Sabbath in 1968, and rose to prominence in the 1970s as their lead vocalist. During this time, he adopted the title "Prince of Darkness". Osbourne began a solo career in the 1980s and formed his band with Randy Rhoads and Bob Daisley, with whom he recorded the albums Blizzard of Ozz (1980) and Diary of a Madman (1981). Throughout the decade, he drew controversy for his antics both onstage and offstage, and was accused of promoting Satanism by the Christian right. Overall, Osbourne released thirteen solo studio albums, the first seven of which were certified multi-platinum in the United States. He reunited with Black Sabbath on several occasions, before they embarked on a farewell tour that ended in 2017. On 5 July 2025, Osbourne performed his final show at the Back to the Beginning concert in Birmingham, having announced that it would be his last due to health issues. Although he intended to continue recording music, he died 17 days later.