Thx! My personal judgement prohibits me from acknowledging anyone that isn't on an album. I guess I'd let a song writing credit slip by, and maybe agree if most of these bands didn't get more & more irrelevant with each line-up change. I'd hardly call that plowing. And what's with including STP already? Since when is…

Nice! Rainbow and (using the same criteria as ACDC/Maiden) Judas Priest, easily could have been included, also. Who makes a list of "19" anyway?

Jerry Only is the vocalist on the last two albums, so that's 3x right there. Might have even been another. No idea why singers that never recorded, or were gone long before the first official releases are included, but this list is all over the place.