Ozzy Osbourne and Black Sabbath headline the 'Back to the Beginning' charity concert, Saturday, July 5, in Birmingham, England. Here's how to stream.

The original members of pioneer metal group Black Sabbath, Osbourne, "Geezer" Butler, Tony Iommi, and Bill Ward, will reunite for the first time in 20 years on Saturday for a massive sold out performance that will include performances from iconic metal and rock artists.

Ozzy Osbourne will reunite with Black Sabbath in his hometown of Birmingham for a farewell concert. Here's a look at the wild life of the "Prince of Darkness," including the time he bit the head off a bat.