"Seeing Oz onstage when Sabbath got done, that's the last time I saw him," Wylde recalled of the band's farewell concert on July 5.

Wylde made a name for himself when he debuted his guitar skills on Osbourne’s 1988 album, “No Rest for the Wicked.” He was also featured on the two records that followed: “No More Tears” in 1991 and “Ozzmosis” in 1995.

Lzzy Hale, whose band Halestorm was among the groups chosen as a supporting act for Black Sabbath's July 5 farewell concert in Birmingham, England, tells PEOPLE in this week’s issue that her memories of Ozzy Osborne — who died July 22 at 76,