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.

Rod Stewart paid tribute to the late Ozzy Osbourne during his One Last Time tour — but his gesture has sparked mixed reactions from fans. The 80-year-old music icon dedicated a portion of his show to honor the legendary Black Sabbath frontman following his recent tragic passing.