Pete Townshend and The Grateful Dead

I came across this video recently of Pete Townshend jamming in 1981 on a couple of songs with the Grateful Dead.

This reminds me of a story Roger Daltrey told once of a jam session that broke out under the stage at the Monterey Pop Festival in 1967. Daltrey claims that Jimi Hendrix, Brian Jones, Mama Cass, George Harrison, Pete Townshend, Keith Moon and Janis Joplin - he mentioned a few others but I can't remember who at the moment - were jamming away to an extended version of "Sgt. Pepper."

Pete denied the session ever took place. Perhaps he really doesn’t remember due to some drugs taken that weekend or maybe it’s because Townshend loves to needle Roger. If such a session did take place, what a shame that there is no film of it.