The day-long concert special featured standout performances from Osbourne and Black Sabbath, Metallica, Guns n' Roses, Jack Black and more.

Let the madness begin!” bellowed a mischievous Ozzy Osbourne from his bat-and-skull encrusted throne in front of a sold-out Villa Park in Birmingham, England. The Prince of Darkness had finally taken to the stage after a marathon of legendary metal bands paid homage to his life and work throughout the day for his and Black Sabbath’s Back to the Beginning concert on Saturday,

Sharon Osbourne claims she removed a band from Black Sabbath's 'Back to the Beginning' final concert after a heated dispute with their manager