John Michael "Ozzy" Osbourne (born December 3, 1948, Birmingham, England) was a British musician, songwriter, and television personality widely regarded as a foundational figure in heavy metal music. He first rose to prominence as the lead vocalist of Black Sabbath, a band he co-founded in the late 1960s with guitarist Tony Iommi, bassist Geezer Butler, and drummer Bill Ward. Black Sabbath is credited with pioneering the heavy metal genre, thanks to their dark themes, heavy guitar riffs, and Osbourne’s distinctive, often ominous vocal style. Their early albums, especially "Paranoid" (1970), are considered classics and remain highly influential in rock music[2][3]. Osbourne was dismissed from Black Sabbath in 1979 due to struggles with substance abuse, but he quickly launched a successful solo career with the release of "Blizzard of Ozz" (1980), featuring guitarist Randy Rhoads. The album and its hit single "Crazy Train" cemented his reputation as a solo artist and broadened his fan base internationally[1][6]. Osbourne’s solo career produced a string of multi-platinum albums—including "Diary of a Madman," "Bark at the Moon," and "No More Tears"—and he became known for his theatrical live shows and eccentric public persona, earning the nickname "Prince of Darkness"[1][4]. His influence extended beyond music: in the early 2000s, he and his family became reality television stars on "The Osbournes," which aired on MTV and introduced him to a new generation of fans[1][3]. Throughout his career, Osbourne faced well-publicized battles with addiction and health issues, including a diagnosis of Parkinson’s disease, yet he continued to release new music and tour into his later years[3]. Osbourne’s contributions to music were recognized with multiple awards, including two inductions into the Rock and Roll Hall of Fame—as a member of Black Sabbath in 2006 and as a solo artist in 2024—and two Grammy Awards at the 2023 ceremony[1][3]. He also received a Global Icon Award from MTV Europe and a star on the Hollywood Walk of Fame[1]. Osbourne’s final live concert took place in July 2025, shortly before his death on July 22, 2025, at age 76[1][2]. His legacy as the "Godfather of Metal" endures, with his music and persona continuing to inspire musicians and entertain audiences worldwide[2][3].