If we talk about progressive songs then most of the people think that progressive songs are that songs which contains aggressive theme and appeal for revolutionary words. But it is a narrow and dogmatic thinking about progressive songs. If there is a song which is about the social reformation or it talks about the happiness of people then it will must be a progressive song. I found such a video of some songs form Micheal Jackson who is not known as a revolutionary singer or a progressive singer but theme of his songs symbolize it.

Man in the mirror

they don't realy care about us

we are the world