Share 'Interesting song ideas'

Ive been thinking about this for a while, those songs that have an interesting idea to them, or a different format or content that makes them different. 50 is a bit of a master at it, with songs like "I Dont Know, Officer", "What If", and "Talk about me". However, the best one, i would have to say is Eminem's "Stan". What yall think and who knows some other songs that are a bit outside the square!