Because You Didn't Want to Know

The song they play in circuses? That silly doo doo doodeedoodee doo doo doo doo? It's called "Entry of the Gladiators (Thunder and Lightning)," by a guy named Fucik. (link to a midi version, halfway down the page:
Click me)

First off, Fucik has a name that does not at all lend itself to typos. Sort of like anyone whose name is Blitch, or Shuit. Those poor bastards.

Secondly, what kind of gladiators enter anything, anywhere, to that song? I mean, besides the kind that listen to Ricky Martin on their off days.