Or it is for these great Aussie performers, based in Melbourne, but touring the US at the mo. If you get the chance to see them, take it. Are you worried about circuses being unfair to animals? Well, the only animals in Circus Oz are of the 2 legged variety, but these guys are awesome. Here's their site.
While you're there, waste a bit of time playing Bounce the Clown. You've got to be better at it tham I am. :-)