So I was watching the beginning of David Lynch's Dune the other night, and I realized that the awesome thing about Toto's theme music is that you can sing along with it by chanting the name of the movie over and over again. (Note: The central motif doesn't kick in until around 1:45.)
Try it: DUNE DUNE DUNE DUNE! (It totally works! No, I'm not high.)
So my question is, how many other theme songs explicitly without lyrics, movies or TV, can this be done with? Off the top of my head, most Superman themes work fine, but not much else.