The biggest gathering in heavy metal history took place this weekend in Birmingham to say farewell to Ozzy Osbourne and the legendary Black Sabbath.

Reuniting onstage for the first time in two decades, Black Sabbath performed to a sold-out crowd of 40,000 with its all-star, one-day-only charity festival Back to the Beginning, held in Ozzy Osbourne’s hometown of Birmingham on July 5 and serving as a farewell concert to and celebration of the longtime rocker.

Boozers were decked with purple balloons and flags; murals were everywhere you looked; people donned Ozzy outfits, flooding the streets with battered T-shirts and denim jackets. It felt like a World Cup final for the metal fans who flooded in from every corner of the planet .