Pink - "Dear Mr. President"
If I were to listen to pop music more often, it would only be if more songs like this existed. Most of the time, the lyrics of songs matter a lot to me, and those that talk about having a good time at a party or whatever just don't appeal to me in the same way as those that tell much deeper stories. Of course, I don't expect a lot more pop songs about poetic fantasies and literary epics, but a little more social commentary would be fine by me, especially considering how many of those I can relate to.
...And honestly, even this song means a lot more to me now than it did when I first heard it five years ago. As I've been getting older and more aware of the outside world, my preferences have changed as well. There's definitely a correlation between the two.