The thread about CCR reminded me that I recently read that CCR had played at Woodstock although I didn’t recall them from the movie or album. This turned out to be right.
I came across this site which has rosters and playlists but also had this fascinating stuff at the bottom:
Jeff Beck Group (The band broke up in July, forcing cancellation)
Iron Butterfly (Stuck at the airport, their manager demanded helicopters and special arrangements just for them. Were wired back and told, as impolitely as Western Union would allow, “to get lost”, but in other ‘words’.)
Joni Mitchell (Joni’s agent put her on “The Dick Cavett Show” instead)
Lighthouse (Feared that it would be a “bad scene”.)
Ethan Brown (Arrested for LSD three days before the event.)
The Beatles (John Lennon said he couldn’t get them together)
Led Zeppelin (Got a higher paying gig at the Asbury Park Convention Hall in New Jersey that weekend)
Bob Dylan (Turned it down because of his disgust of the hippies hanging around his house)
The Byrds (Turned it down because of a melee during their performance at the first Atlanta International Pop Festival, held at the Atlanta International Raceway on July 4 and July 5, 1969)
Tommy James & the Shondells (Turned it down because of being misinformed about the size and scope of the event)
Jethro Tull (Turned it down because they thought it wouldn’t be a big deal.)
The Moody Blues were included in the original posters as performers, but backed out after taking a gig in Paris on the same weekend.
Spirit (they had other shows planned and did not want to back out of their commitments; not knowing how big that Woodstock would ultimately become)
Mind Garage (Declined because they thought it wouldn’t be a big deal and had a higher paying gig elsewhere)*
Bet their are some regrets even today amongst that lot.