So heaven and hell came on Spotify and got me thinking, not a lot of bands with success with two different singers in succession. I got Dio (Sabbath), Hagar (Van Halen), Johnson (AC/DC). I’m probably missing some, but definitely a reason those three made it big. I’ll exclude Fleetwood Mac for now as I feel like two completely different bands…Hagar and Johnson definitely can sing the whole catalog of songs. Dio Live Evil doing old sabbath has such a unique style. But ozzy was so unique as well, it’s hard to know what would be better without being so accustomed to original.