Led Zeppelin perform in Los Angeles, June 23 1977, at the L.A. Forum, with Keith Moon who joins onstage. (8mm film).
It's spliced very poorly, but hey, back in 1977, what should you expect with amateur videotaping.
For the Keith Moon segment, forward to around 5:30 mark. You will get to see Robert Plant on DRUMS for a few seconds while Keith blabbers on the mic until Plant rips it out of his hands. Then Keith Moon joins in with the whole band standing next to Bonham playing kettle drums on "Rock And Roll". Cool historical shit.
The legend goes that it was Keith Moon who was responsible for the Led Zeppelin name for the band. When an early version of the band was being discussed that would have had himself, John Entwistle on bass, Jimmy Page on guitar, and an undecided vocalist, Moon stated the potential group would "go down like a lead zeppelin."
Keith Moon died a year after this performance, at 32 years old, of a drug overdose. The pills he took were prescribed to him to overcome his alcohol addiction. Oddly enough, Moon died in the room in which Cass Elliot of The Mamas & the Papas had died four years earlier, which was a flat on loan from Harry Nilsson.
Two years after Moon died, John Bonham also died and also at the age of 32.