Rock legend Ozzy Osbourne's cause of death has officially been revealed, according to multiple sources including The New York Times, The Sun, People.com, and NBC News. The death certificate, filed in London by his daughter Aimée Osbourne, lists the primary cause as a heart attack, medically described as an "out-of-hospital cardiac arrest" and "acute myocardial infarction."

The certificate also identifies significant underlying health conditions that contributed to the 76-year-old singer's death. These include:

• Coronary artery disease, a common condition that narrows or blocks the heart's blood vessels.

• Parkinson’s disease with autonomic dysfunction, a progressive neurological disorder affecting the nervous system, which can complicate cardiovascular health.

Ozzy Osbourne, widely known as the frontman of Black Sabbath and a pioneer of heavy metal, had publicly battled Parkinson’s disease for years. His declining health had forced him to cancel several tours and appearances in recent years.

The news of his passing has triggered an outpouring of grief and tributes from fans and fellow musicians around the world, recognizing Osbourne's lasting impact on the music industry.

Related Searches:

• What caused Ozzy Osbourne’s death?

• Did Ozzy Osbourne have heart problems?

• Ozzy Osbourne Parkinson's disease timeline

• How did Ozzy Osbourne die?