Okay kiddo, so rock and roll is a type of music that makes people feel energetic and excited. It has been around for a long time, but in the 1950s and 1960s, it became really popular all around the world.
At the same time, many countries were ruled by governments called communist governments. These governments were very strict and did not allow people to have a lot of freedom.
However, some people in these countries started listening to rock and roll music and they really enjoyed it. They started to feel like they wanted more freedom, like the freedom to express themselves and listen to the music they wanted to listen to.
As more and more people started to like rock and roll and want more freedom, it became harder for the communist governments to control them. Eventually, some of these governments started to fall apart and people were able to have more freedom to do what they wanted, including listening to rock and roll music.
So, in a way, rock and roll music helped to start a movement for more freedom in some countries that were ruled by strict governments.