Watch Dave Grohl, Eddie Vedder and Pat Smear Jam With Mike Watt

What happens when Dave Grohl, Eddie Vedder, Pat Smear and Mike Watt are all in the same town? They call each other up and do an unrehearsed jam live. They do "Big Door" with Vedder on the far left, Grohl pounding the drums and Smear next to Vedder. Shot from a fan, but cool to watch nonetheless. 

Check it below. 

And another, closer perspective.