Read the following article and answer the question.

So that makes a third USS group heading to Munich in 2010 for Oktoberfest . It is going to be pretty intense . Magic Hat had a bar crawl last night ( Saturday ) on Walnut Street . They featured vaudeville circus performer ( think panic at the disco ) types . There was knife juggling , torch juggling , balancing bar stools / chairs , and such .

Why were there circus performers on the street ?
They must have had a street fair .