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.

Yesterday, just a couple of weeks after a victory lap performance at his star-studded farewell concert in his Birmingham hometown, Ozzy Osbourne died at 76 following a years-long battle with Parkinson’s disease.