Jul 172018

Way back in 2011, Metallica celebrated their 30th anniversary at the Fillmore in San Francisco.

Among the guests on hand were members of the-then recently reunited Black Sabbath, Ozzy Osbourne and Geezer Butler, who joined Metallica for renditions of “Iron Man” and “Paranoid.” Butler also sat in with the band “Sabbra Cadabra.” You can watch videos of all these performances below.

Black Sabbath's Geezer Butler and Ozzy Osbourne Play "Iron Man" and "Paranoid" with Metallica
Source: Guitar World