two concerts on a circus stage and included such acts as Eric Clapton, The Who, Taj Mahal, Marianne Faithfull, and Jethro Tull. 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. ... Rolling Stones Lennon Yoko Eric Clapton Jethro Tull Taj Mahalm Circus Rock Roll ...