Rhythm and blues "Hearts of Stone" by the Charms made the top 20. At Chess Records in the spring of 1955, Bo Diddley's debut record "Bo Diddley"/"I'm a Man" climbed to number two on the R&B charts and popularized Bo Diddley's own original rhythm and blues clave-based vamp that would become a mainstay in rock and roll. At the urging of Leonard Chess at Chess Records, Chuck Berry had reworked a country fiddle tune with a long history, entitled "Ida Red". The resulting "Maybellene" was not only a number three hit on the R&B charts in 1955, but also reached into the top
British rhythm and blues was held at Reading in Berkshire. 1964 was the year of most rapid expansion and the peak of the British R&B boom. It has been estimated that there were 300 rhythm and blues bands in England at the beginning of the year and over 2,000 by the end. In June 1964 John Lee Hooker's 1956 "Dimples" reached number 23 on the UK charts during a stay of 10 weeks. The song was chosen by the Spencer Davis Group as their May 1964 debut single and the Animals covered it on their first album. Howling Wolf's "Smokestack Lightning", released in the