John Mayall, OBE (born 29 November 1933) is an English blues singer, guitarist, organist and songwriter, whose musical career spans over sixty years. In the 1960s, he was the founder of John Mayall & the Bluesbreakers, a band which has counted among its members some of the most famous blues and blues rock musicians. Born in Macclesfield, Cheshire in 1933, Mayall was the son of Murray Mayall, a guitarist and jazz music enthusiast. From an early age, John was drawn to the sounds of American blues players such as Lead Belly, Albert Ammons, Pinetop Smith and Eddie Lang, and taught himself to play the piano, guitars, and harmonica.

In 1956, with college fellow Peter Ward, Mayall had founded the Powerhouse Four which consisted of both men and other local musicians with whom they played at local dances. In 1962 Mayall became a member of the Blues Syndicate. The band was formed by trumpeter John Rowlands and alto saxophonist Jack Massarik, who had seen the Alexis Korner band at a Manchester club and wanted to try a similar blend of jazz and blues. It also included rhythm guitarist Ray Cummings and drummer Hughie Flint, whom Mayall already knew. In 1962 John and his band were frequent and popular artists at all night R&B sessions at the ‘Twisted Wheel’ cellar club in central Manchester. Alexis Korner persuaded Mayall to opt for a full-time musical career and move to London, where Korner introduced him to many other musicians and helped them to find gigs. In late 1963, with his band, which was now called the Bluesbreakers, Mayall started playing at the Marquee Club. The line-up was Mayall, Ward, John McVie on bass and guitarist Bernie Watson, formerly of Cyril Davies and the R&B All-Stars. The next spring Mayall obtained his first recording date with producer Ian Samwell. The band, with Martin Hart at the drums, recorded two tracks : “Crawling Up a Hill” as well as “Mr. James.” Shortly after, Hughie Flint replaced Hart and Roger Dean took the guitar from Bernie Watson. This line-up backed John Lee Hooker on his British tour in 1964.

Mayall was offered a recording contract by Decca and, on 7 December 1964, a live performance of the band was recorded at the Klooks Kleek. A later studio-recorded single, “Crocodile Walk”, was released along with the album, but both failed to achieve any success and the contract was terminated.

In April 1965 former Yardbirds guitarist Eric Clapton replaced Roger Dean and John Mayall’s career entered a decisive phase.