I'm earwormed.
Not with Why is Captain Kirk Climbing a Mountain [1] (link via kisrael.com [2]), although I find it rather catchy, but with (to me) this 60s surf movie (or maybe western—it's got elements of both) rendition of the Star Wars theme [3] (link via news from me [4]). I can also imagine Quentin Tarantino [5] using this in one of his films.
[1] http://www.youtube.com/watch?v=HU2ftCitvyQ
[2] http://kisrael.com/2009/09/12/
[3] http://www.youtube.com/watch?v=E0ikC5ZdHfo
[4] http://www.newsfromme.com/archives/2009_09_13.html#017709