Matt Butler brought his Everyone Orchestra to Burlington, VT’s Higher Ground this past weekend for a late-night party after Tumble Down wrapped up at Waterfront Park, and the revolving-door superjam got an extra special guest in Phil Lesh.

Originally set to play with conductor Butler were all four members of Twiddle, Holly Bowling, Fruition’s Tyler Thompson and Mimi Naja, and Midnight North’s Grahame Lesh, Elliott Peck and Alex Jordan. Lesh surprised by joining the fray, as can be seen in the fan video captured above.

It was Lesh’s second surprise of the festival, as the Grateful Dead bassist also joined Twiddle for one of their sets for a few tunes including a cover of the Dead’s “Eyes of the World.”