Led by Colin Cooper, the former frontman of the R&B unit the Hipster Image, the Stafford, England-based Climax Chicago Blues Band was one of the leading lights of the late-1960s blues boom. A sextet also comprised of guitarists Derek Holt and Peter Haycock, keyboardist Arthur Wood, bassist Richard Jones and drummer George Newsome, the group debuted in 1969 with a self-titled effort recalling the work of John Mayall.
Prior to the release of 1969's Plays On, Jones left the group, prompting Holt to move to bass. In 1970 the Climax Chicago Blues Band moved to the Harvest label, at the same time shifting towards a more rock-oriented sound on the LP A Lot of Bottle. Around the release of 1971's Tightly Knit, Newsome was replaced by drummer John Holt; upon Wood's exit in the wake of 1972's Rich Man, the unit decided to continue on as a quartet, also dropping the "Chicago" portion of their name to avoid confusion with the American band of the same name.