HAPPY BIRTHDAY, ERIC CLAPTON! The Dirty Mac - John Lennon, Eric Clapton, Keith Richards and Mitch Mitchell - play John's 'Yer Blues' at The Rolling Stones' Rock and Roll Circus in December 1968. #happybirthdayericclapton | John Lennon

The Dirty Mac was John Lennon's temporary supergroup organised in December 1968 that featured Eric Clapton, Keith Richards, Mitch Mitchell and himself (as "Winston Leg-Thigh"). The band assembled for a one-off performance on the Rolling Stones' TV special titled The Rolling Stones Rock and Roll Circus. The Dirty Mac played Lennon's Beatles composition "Yer Blues" and "Whole Lotta Yoko", an extended blues improvisation in which they were joined by Lennon's then-girlfriend Yoko Ono and violinist I