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
Rhythm and blues sales were localized in African-American markets; there was no white sales nor white radio play. During the early 1950s, more white teenagers started to become aware of R&B and to purchase the music. For example, 40% of 1952 sales at Dolphin's of Hollywood record shop, located in an African-American area of Los Angeles, were to whites. Eventually, white teens across the country turned their music taste towards rhythm and blues. Johnny Otis, who had signed with the Newark, New Jersey-based Savoy Records, produced many R&B hits in 1951, including: "Double Crossing Blues", "Mistrustin' Blues" and "Cupid's Boogie", all of which