When you say “secret song” do you mean some sort of extra on the DVD? And that is awful. If you did any work to find it, it sounds quite annoying. Do you think it was the original title and they were trying to look clever?
No, the lyrics held the secret to finding some object which held the secret to the mysteries of the Universe, until they actually find it and it just sends them to another clue and so on.
Lex Luther supposedly was taught the song as a kid.