www.youtube.com/watch?v=
While not strictly a song about the circus, this is certainly the best 3:50 that Gogol Bordello ever produced. It is sheer, joyous madness, and would not be amiss backing a nine-clown competitive burlesque, complete with diesel-powered mechanical yaks, tambourine floozies, an enthusiastic immigrant crowd, and a SWAT team keeping time by battering down the door.