Last night, Umphrey’s McGee closed out its brief run with the Dave Matthews Band at Scranton, PA’s Pavilion at Montage Mountain. At the end of its set, the Chicago-based sextet invited out longtime Dave Matthews Band keyboardist Butch Taylor and more recent DMB touring addition Rashawn Ross for ‘Black Water.’ Local resident Jen Hartswick also added auxiliary vocals. Umphrey’s McGee performs next on July 15 at Masontown, WV’s All Good Festival.