This week in 1969, The Beatles soundtrack album "Yellow Submarine" was released in the United States. The Beatles fourth film had songs by the band on it and also orchestral pieces, it would make it up to #2 on the charts.

From "The Beatles Anthology" album Paul McCartney had this to say about the song “Yellow Submarine”. I remember lying in bed one night, in that moment before you're falling asleep - that little twilight moment when a silly idea comes into your head - and thinking of Yellow Submarine: 'We all live in a yellow submarine...'

I quite like children's things; I like children's minds and imagination. So it didn't seem uncool to me to have a pretty surreal idea that was also a children's idea.