My first song was "Cowboys in the City". My first song with lyrics was "Bean Parfait". At one time I was going to organize a "first songs" sidefight, where everyone could submit the first song they'd ever written. Never got around to it.
That'd be a great idea. A few weeks ago I found an old tape with my casio keyboard tune "Pump Up What's Not Pumping Up" I made when I was 12. It was so very very bad & derivative-pre-teenie-bopper-from-1988.. and that's what makes it so really funny. "Come on homeboys, what are you waiting for..... "