United Kingdom, Aug. 5 -- Ozzy Osbourne's cause of death has been revealed.

The 76-year-old Black Sabbath frontman died on 22 July following years of health challenges, including a public Parkinson's disease diagnosis in 2019, and documents now show he passed away from an "acute myocardial infarction" and "out of hospital cardiac arrest".

His death certificate has emerged after the heavy metal icon, widely known as the Prince of Darkness, gave a final farewell performance in his hometown of Birmingham shortly before his death.

The gig, which was followed by a coffin-led procession through the streets to Black Sabbath Bridge, marked a symbolic return to the city where his career began.

Ozzy was later laid to rest by the lake on the gro...