Tony Iommi has explained why his old friend Brian May appears on the Black Sabbath guitarist’s new solo album, and why longtime colleague Geezer Butler didn’t. And I thought, ‘He’s just a fan’ [until] he said, ‘We’ve got a mutual friend. Is Tony Iommi Happy with Black Sabbath’s Legacy? The only “named” person on the album aside from Iommi himself is Queen guitarist May, who appears on the track “Death Wake.” He’s played onstage a couple of times with me, and then we’ve done a couple of album tracks we played on together.