Ozzy Osbourne has been remembered as a “pioneer,” a “fearless talent” and a “dear friend,” in an outpouring of tributes from fellow musicians and his former Black Sabbath bandmates following his death on Tuesday at the age of 76.

Osbourne’s passing was confirmed by his family on July 22. In a public statement, the Osbourne family shared that he died surrounded by loved ones after a prolonged battle with Parkinson’s disease. They also requested privacy during this time of mourning.