1. In USA and UK. In 1980 year's.

2.The pop direction has gained such wide popularity due to the fact that it is actively popularized. Various pop songs can be heard all over the place. In addition, various festivals, concerts and other events are constantly held all over the world, where the best representatives of the direction perform.

3. it brings people together and is good for companies where unfamiliar people gather. And this can be concluded that the pop will remain forever.