Phish songwriter Tom Marshall surprised the crowd in Baltimore, MD at the Phish cover band Runaway Gin’s show at 8×10 on Saturday night when he joined the band for a take on “Brian and Robert.”

In a pre-arranged stunt, frontman Andy Greenberg asked the crowd if there was someone in the audience who could help him out with the lyrics to the song, thus prompting the longtime Phish lyricist and collaborator to hop on stage for the Story of the Ghost ballad.

Marshall has recently launched his Under the Scales podcast, talking Phish and more with the likes of The Dude of Life, members of the McLovins, David Steinberg and many more.