Widespread Panic spent the weekend performing a three-night stand at Berkeley, CAs Greek Theatre. On opening night, the group also invited a few friends onstage during its second set. Eric McFadden emerged first for versions of Rock and Fixin to Die which segued into a drum jam punctuated by Wally Ingram. Both McFadden and Ingram joined Widespread Panic a show earlier in Lake Tahoe, NV and are members of Dave Schools Stockholm Syndrome. Panics summer tour continues tomorrow at San Diego, CAs Bayside at Embarcadero Marina Park South.