The music world is reeling after the official cause of Ozzy Osbourne’s death was revealed, contradicting earlier statements from his medical team. The Black Sabbath frontman, who passed away on July 22, 2025, at age 76, died of a heart attack, with coronary artery disease and Parkinson’s disease listed as contributing factors, according to a death certificate obtained by The New York Times on August 5. This revelation has shocked fans, as initial reports from Osbourne’s doctor suggested a different narrative, sparking confusion and speculation.

Following Osbourne’s death, his family announced he passed “surrounded by love,” but no cause was specified, leading to widespread assumptions that Parkinson’s, diagnosed in 2003, was the primary factor. A statement attributed to his physician, per Newsweek, implied complications from the disease, which severely limited his mobility, were to blame. However, the death certificate lists “out of hospital cardiac arrest” and “acute myocardial infarction” as the primary causes, with Parkinson’s and coronary artery disease as “joint causes.” This discrepancy has fueled debate on X, with fans posting, “How could the doctor get it so wrong? Ozzy deserved better.”

Osbourne’s final performance at Black Sabbath’s farewell concert on July 5 in Birmingham, England, saw him perform from a throne due to his health struggles. The emotional event, attended by 42,000 fans and featuring Metallica and Guns N’ Roses, was a testament to his enduring legacy. “You have no idea how I feel,” Osbourne told the crowd, per BBC. The revelation of a heart attack has left fans questioning whether his condition was downplayed, with one X user writing, “Was Ozzy pushing himself too hard for that final show?”

The Osbourne family, including wife Sharon and children Kelly, Jack, and Aimee, has remained silent on the conflicting reports, requesting privacy. Sharon, who managed Ozzy’s career, was described as “heartbroken” by PEOPLE, with the family rallying around her. The funeral procession in Birmingham on July 30 drew thousands, reflecting Osbourne’s impact as the “Prince of Darkness.” Tributes from peers like Elton John, who called him a “trailblazer,” underscored his influence on heavy metal.

The discrepancy between the doctor’s initial statement and the official report has raised questions about transparency. While Parkinson’s affected Osbourne’s mobility, the heart attack was unexpected, given his history of surviving drug addiction and accidents, including a 2003 quad bike crash. As fans mourn, they demand clarity, with one X post stating, “Ozzy’s truth matters—why the mixed messages?” The music icon’s legacy endures, but this revelation has left a bittersweet note in his storied career.