John Mayall Plays John Mayall is a live album and the first release by John Mayall & the Bluesbreakers, issued in 1965 on Decca Records. It was recorded live at the Klooks Kleek club in West Hampstead, London, on 7 December 1964.[1] Guitarist Roger Dean stated that sound cables were run for 100 yards out of the window of the club to Decca Studios,[2] which was two buildings away.