The co-founders of Black Sabbath paid tribute to their doomsayer-in-chief following the news of Ozzy Osbourne’s death at age 76 on Tuesday.

The Black Sabbath frontman, who shocked audiences for decades and became an unlikely reality TV star, died Tuesday at 76.

Ozzy Osbourne commemorated the final concert of his life just one day before his death. Osbourne shared a behind-the-scenes photo from Black Sabbath’s Back to the Beginning show via Instagram on Monday, July 21. The picture showed the outside of Osbourne’s dressing room at Aston, Birmingham, England’s Villa Park, where the concert was held on

Osbourne died this past Tuesday, at the age of seventy-six; his family didn’t announce a cause, but he had previously disclosed that he had Parkinson’s disease. By the time of his death, Osbourne had been doubly transformed by Iommi’s good idea about “evil.