"I didn’t realize then that I would never see Ozzy again after that night," Butler writes of the July 5 "Back to the Beginning" show in England.

Given that major rock and metal acts such as Mastodon, Metallica, Halestorm, Lamb of God, Gojira and Alice in Chains were involved in the concert, you’d think that Megadeth would’ve been as well. According to LoMenzo, though, they missed the moment simply because they weren’t invited.

Ozzy Osbourne, the gloomy, demon-invoking lead singer of the pioneering band Black Sabbath who became the throaty, growling voice — and drug-and-alcohol ravaged id — of heavy metal, died Tuesday, just weeks after his farewell show.