Rock music of Canada the 1920s, rock and roll did not acquire its name until the 1950s. "Rock"' or its forerunners electric blues (Chicago blues) and rhythm and blues (Jump blues) was first heard in the late 1940s by Canadians who were living close enough to the American border to tune into American radio station broadcasts. In 1951, Cleveland, Ohio, disc jockey Alan Freed began playing rhythm and blues music for a multi-racial audience, and is credited with first using the phrase "rock and roll" to describe the musical sound of the Doo-wop vocal groups and the rockabilly singers who emerged in the 1950s.
Rock and roll first entered the British charts in early 1955 – four months before it reached the US pop charts – topped the British charts later that year and again in 1956, and helped identify rock and roll with teenage delinquency. American rock and roll acts such as Elvis Presley, Little Richard, Buddy Holly, Chuck Berry and Carl Perkins thereafter became major forces in the British charts. The initial response of the British music industry was to attempt to produce copies of American records, recorded with session musicians and often fronted by teen idols. More grassroots British rock and rollers soon began