Ozzy Osbourne has always done things his own way — and even in death, the Prince of Darkness leaves behind a legacy as loud and chaotic as the life he lived. The heavy metal icon’s death certificate,

It appears Ozzy Osbourne tried to trademark his iconic 'Prince of Darkness' moniker just weeks before he died. According to a report from The Sun, the late Black Sabbath singer filed documents just days before his passing on 22 July .

Ozzy Osbourne passed away at 76, just weeks after his final Black Sabbath concert. Learn more about the health complications that led to his death and the official cause here.