Rock and roll started to gain popularity in the early fifties. With the invention of the electric guitar and the Amplifier, or Amp. This genre brought the existence of many popular bands and artists, that remain popular to this day.
One of the most famous bands, was the Beetles. The Beetles were a band of four people from England. They became popular by he so called"British Invasion". Which is a period of time in which a large number of British bands became popular in the United States.