Some facts that I have heard/read over the years...
Davey Jones of The Monkees used to be a horse jockey
Eric Clapton penned the song Wonderful Tonight while waiting for his then wife Patti Boyd Harrison, who had been previously married to close Clapton friend George Harrison, to get ready for a party at Paul and Linda McCartney's house. The party was their annual homage to Buddy Holly.
Foghat is named after a fake word made up by the band's singer Dave Peverett and his brother during a game of Scrabble
The Crosby, Stills & Nash logo from the mid-'70s into the '80s which featured the initials of their last names intertwined, was designed by Saturday Night Live comedian Phil Hartman.
The song "Summertime Blues" was a US Top 40 hit in three different decades - in the fifties by Eddie Cochran (#8), the sixties by Blue Cheer (#14) and the seventies by The Who (#27).
Reginald Kenneth Dwight changed his stage name to Elton John, taking his first name from Bluesology saxophonist Elton Dean and his last from bluesman, Long John Baldry.
Listen carefully to the begining of The Beatles' song "Come Together", from their Abby Road album. The bass guitar riff nearly obliterates John Lennon saying "Shoot me".
Does Your Mamma Know About Me" was a Top 30 hit in May of 1968 for a group called Bobby Taylor and The Vancouvers. The song was written by one of the band's guitar players, Tommy Chong, who would later team with Cheech Marin as Cheech and Chong.
The chords and structure of Tommy James' 1967 Billboard #10 single, "Mirage", were actually the chords to his previous hit, "I Think We're Alone Now" in reverse, created when it was accidentally played backwards during a writing session
The Allman Brothers' only Billboard Top 10 hit, "Ramblin' Man" was the last song recorded by bassist Berry Oakley before his death in 1972.
"For What It's Worth" by Buffalo Springfield got its title when Stephen Stills first played the song for the group, saying "Here's a new song I wrote, for what it's worth." When he finished playing, he was asked what the title was. Stills said he didn't have one. Someone then replied, "Sure you do. You just said it."