Last weekend, jam worlds collided when Mike Gordon performed with progressive bluegrass heroes (and longtime Phish fans) Greensky Bluegrass. The collaboration went down at the band’s inaugural Camp Greensky Music Festival, which took over the Hoxeyville festival grounds in Wellston, MI.Gordon came on stage toward the end of Greensky Bluegrass’ headlining set on Saturday, June 2nd. The Phish bassist took up an acoustic guitar for a cover of Alison Krauss‘ “Endless Highway” before switching to his usual weapon of choice—the electric bass—for a set-closing take on the Greensky original “Don’t Lie”.Gordon was on hand at Camp Greensky after wrapping up a main stage performance with his own Mike Gordon Band. According to Greensky Bluegrass dobro player Anders Beck, there was a 65% chance that Gordon would sit in at Camp Greensky, so the band was no doubt excited when he did. Fortunately, we can all relive the magic of Greensky & Gordon with this video courtesy of YouTube user Peter Huebner.Greensky Bluegrass feat. Mike Gordon – “Endless Highway” & “Don’t Lie”[Video: Peter Huebner]Can’t get enough of Greensky Bluegrass’ Camp Greensky collaborations? Head over to archive.org to give the full Saturday show—which featured sit ins from Marco Benevento, Chris Jacobs, and Dusty Ray Simmons—a listen.