A lot.
By the end of the evening, it's pretty much burned itself into your head and you even hear it the next morning. If it was the whole theme, that wouldn't be so bad as there's some nice space calypso in it. But it's only the first 30 seconds or so (do-dee do-dee do-dee, etc).
The only antitode is manualist playing it on his hands, or "Copacabana" with the lyrics changed to make it "Star Wars Cantina" (actually rather well-done).
And there is the "Robot Chicken Star Wars" Cantina scene from the POV of Ponda Baba (the walrus-like alien). Excellent!
