Thirty-nine years ago this week The Who were playing at the Cow Palace in Daly City California. As was his wont, drummer Keith Moon had been ingesting various things that he shouldn't have including, for reasons best known to himself, horse tranquillisers washed down with brandy(!). Moon is reported to have mumbled something to the effect of: "I can take it, I am Keith "Effing" Moon".
He couldn't. He passed out on stage.
After playing on for several songs without him, Townshend asked whether there was anyone in the crowd who could play the drums. A nineteen year old by the name of Scott Halpin was volunteered by his friends and the rest, as they say, is history.
You can see what happened here, but I prefer to remember Moon at his best. Here he is in what I think was his last performance with the band: