Luminaries of the music world mourned the death Tuesday of Ozzy Osbourne at age 76, expressing affection and admiration for the heavy metal icon.

Rage Against the Machine guitarist Tom Morello, who served as musical director for Osbourne’s final show, shared a photo with the late singer on Instagram, writing, “Good bless you Ozzy.” Metallica’s X account also shared an image with Osbourne with a heartbroken emoji.

The late legend is survived by his first wife, Thelma Riley and their children, Jessica, Lewis and adopted son Eliot. With Sharon, he shares kids Aimee, Jack and Kelly - the latter of whom the heavy metal pioneer got to see get engaged to Slipknot's Sid Wilson at Black Sabbath's goodbye show.