However, one noticeable omission was Megadeth, who, it turns out, weren’t invited. According to a yet-unpublished interview with Megadeth bassist James LoMenzo for Japan’s Burrn! magazine, the band wasn't even approached to participate in any capacity.

Osbourne died on Tuesday at 76, just weeks after he and Black Sabbath performed at their farewell Back to the Beginning concert earlier in July.