It should come as no surprise that this past Saturday’s “Back to the Beginning” webcast was a huge success given the cultural significance of the time. The world’s metal community turned out in force for the historic event, which took place at Birmingham, UK’s Villa Park and marked Ozzy Osbourne and Black Sabbath‘s final live appearance. The farewell gig was broadcast live to almost five million viewers worldwide, making it one of the most significant events in metal history, according to The Guardian. Although precise figures are difficult to verify, particularly when taking into consideration unofficial streams, that figure might very well be greater. An outstanding bill featuring Metallica, Slayer, Pantera, Guns N’ Roses, Tool, Anthrax, and several all-star supergroup tributes to Ozzy and Black Sabbath classics drew over 40,000 spectators to the stadium. The concert was a farewell love letter to the fans and the city that helped build one of the most influential bands in music, and it was hosted by Jason Momoa, an actor and lifelong metalhead. Above all else, “Back to the Beginning” was a huge fundraiser. The event is expected to have collected millions of dollars for charity, with digital tickets starting at $29.99 and increasing up for premium packages. All earnings will go to Birmingham Children’s Hospital, Acorn Children’s Hospice, and Cure Parkinson’s.