Ozzfest kicked off its first year on October 25, 1996.

The festival was famously founded by Sharon Osbourne after Lollapalooza turned down Ozzy Osbourne for a spot on their lineup. Ozzfest would later expand to a touring festival traveling throughout the United States and have stints in Europe and Japan.

Scroll through the gallery below to see past lineups from the history of Ozzfest.