The reason why some songs stand out so much is because of the music video they have to go with it, for example the group A-Ha and their hit song 'take on me' made it to the top of the charts because they were the first to make an animated video that was completely drawn out.
Another example of a video that made the top of the charts is Sinead O'Conor and her hit song 'Nothing compares to you'. the music video is mainly an extreme close up of Sinead's face and what made it stand out is when she began to cry whilst singing about her mother. This would have made the audience feel sympathetic but also shock them as its something they haven't seen before.
