Bill Haley was an American rock and roll musician, he had started his career as a musician since 1945.
In early 1950s he was getting popular with his group Bill Haley and His Comets.
Their debut single “Stop Beatin’ Round The Mulberry Bush” was released in 1952, but didn’t hit at all.
The second single in 1953 “Crazy Man, Crazy” peaked #12 on the Billboard Hot 100.
Now, “Rock Around the Clock” was released in 1954, after that was used a film music, and re-relased in 1955. topped on the Billboard Hot 100.
It’s the first No.1 song, was used the word “Rock” in the title.
They say rock era was started from the song.