(hennemusic) Metallica closed out their week-long 30th Anniversary celebrations at the Fillmore in San Francisco on Saturday with a bang.The big surprise came midway through the show when Metallica brought out Black Sabbath bassist Geezer Butler; Robert Trujillo introduced Geezer as "My hero, Cliff Burton's hero, Jason Newsted's hero," before they ripped through a mini-medley of "Sabbra Cadabra" and "A National Acrobat."
Sabbath vocalist Ozzy Osbourne appeared on stage next, joining the lineup for a double-shot of "Iron Man" and "Paranoid." more on this story
