Rock Hall guitarist, Michael Hampton from Parliament-Funkadelic, joined Mickey Melchiondo (aka Dean Ween) at John and Peter’s for a searing performance of Funkadelic’s guitar opus, Maggot Brain.

Hampton and Dean took to the stage to honor the passing of a mutual friend, Jeff Rusnak. Here’s what Mickey had to share from Facebook:

There are things in life (if you’re as lucky and fortunate as I have been) that just don’t seem possible. Meeting and playing with Yoko and Sean, watching Neil Young from behind Crazy Horse play “Hey Hey My My”, touring and recording with the Meat Puppets, and then this. I’ve established a good friendship with Mike Hampton that grows every day–but I never cross the line and suggest that we play “Maggot Brain”. It’s just too powerful of a song and needed to be saved for a special occasion. Unfortunately this time that occasion was the death of our mutually close friend Jeff Rusnak yesterday. Michael called this one out—if you could transport me back in time to when I used to play along with Eddie Hazel’s famous recording of this, I would have never, ever, thought that I would end up on a stage playing it note for note next to Mike (and he was using my guitar, pedals and amplifier) and hearing this screaming from an amp behind me. I was in disbelief, total shock that my life would lead me to that moment. but here it is, in HD as well. If you haven’t been to an Invitational Jam you need to come immediately—-this was the greatest thing that was ever performed at John and Peter’s, ever–and one of the highlights of my life, not just my musical life, my entire life.

You can tell from the video how humbled Mickey is to share the stage with Hampton.

The Deaner is no stranger to John and Peter’s Wednesday night Invitational. Check out his kick-ass cover of Low Rider.