Do you notice how many rock songs have been written about Superman? Just off the very top of my head I can think of Superman songs by The Flaming Lips, Crash Test Dummies, Better Than Ezra, Three Doors Down, Spin Doctors and on and on.
But to be honest, Superman is kind of a boring superhero. He's too perfect and too impervious. He is to males what Barbie is to girls. By far, Spiderman is the coolest superhero ever created, but how many songs do you hear about him? Just the theme song to his TV shows. Can Batman get a little love? No, no, no. It's all about the blue tights and red cape when it comes to singing and philosophy.
I'm still waiting for the day when a piece of your destroyed home planet or a bite from a radioactive spider does not sap your strength or recombine your DNA. Where are the superheros that get around these things and break out in blisters or have their hair fall out?