Billy Corgan paid tribute to Black Sabbath following the rock band’s final concert in Birmingham, England, over the weekend, calling the experience “a beautiful and bittersweet day.” The all-day show at Villa Park saw Ozzy Osbourne,

Iommi also explained that the band only agreed to reunite for the Back to the Beginning concert because it would be a charity show. "It’s absolutely the end,” he said of Black Sabbath, which he formed in 1968 with Osbourne, Butler, and Ward. “There’s no way we could go out and do a tour.”

Even metal icons get the pre-show jitters, as Black Sabbath's Tony Iommi reveals ahead of tomorrow's historic final gig