Metallica and the San Francisco Symphony are set to reunite this September. They're celebrating the 20th anniversary of the 1999 orchestral S&M concerts at Berkeley Community Theatre, and subsequent live album and video, as well as the opening of Chase Center, a new arena in San Francisco's Mission Bay neighborhood. S&M2 happens on September 6 at Chase Center, where conductor and San Francisco Symphony Music Director Michael Tilson Thomas will appear to conduct part of the show.

"This is beyond exciting on so many fronts," Lars Ulrich said in a press conference on Monday (3/18). "The fact that San Francisco is finally getting a much needed world-class arena, the fact that Metallica get to be part of the opening celebration, the fact that we get to revisit S&M 20 years later, and the fact that we get to share the stage not only with the San Francisco Symphony once again, but with the legend himself, MTT, as he kicks off his final year as music director here in San Francisco. This is mind-blowingly awesome... bring it on ASAP!!!"

S&M2 is set to feature performances of arrangements featured in the original, as well as "the first ever Metallica/San Francisco Symphony renditions of songs written and released since the original S&M, with new orchestral charts by Bruce Coughlin."

Tickets go on sale Friday 3/22 at 10 AM, with various other presales, including one for fan club members, beginning Tuesday 3/19 at 9 AM.