@tkappa, thank you for this: now I have Macarena in my head. I will have to banish the earworm by listening to some real music.

Seriously though, your article is very informative, and I cannot wait for the follow-up. Man's search for answers to the most mundane phenomena is amazing. Who would have thought that someone would want to know why a song gets stuck in one's head?

I am a little bit crazy, therefore I will share my way of getting rid of a song: I sing it out loud, dance with the rhythm, and then deliberately change the music in my head, like one would physically replace one CD with another.