On this day in 1968 – Filming began for The Rolling Stones ‘Rock & Roll Circus.’ As well as clowns and acrobats, John Lennon and his fiancee Yoko Ono performed as part of a supergroup called The Dirty Mac, along with Eric Clapton, Mitch Mitchell, and Keith Richards. It was originally meant to be aired on the BBC, but the Rolling Stones withheld it because they were unhappy with their performance. The film was eventually released in 1996.