Phish drummer Jon Fishman, Mihali Savoulidis of Twiddle and Russ Lawton of Trey Anastasio Band will join the Jerry Garcia Band tribute act Cats Under The Stars at Club Metronome in Burlington, VT tonight. The musicians will perform as part the weekly “Dead Set” Grateful Dead Jam. Entry is free for all fans who are 21+, though tickets will be $5 for the 18+ fans. The show will begin at 9pm and end at 2am.

Cats Under The Stars posted this clue about the sit in on their Facebook page earlier today.