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1.
The act of banishing a song from your head after it has been stuck there for days. There are two known methods of musical exorcism:

1) Listen to a recording of the song in your head
2) Begin singing "Black Betty" by Ram Jam to yourself
I wake up every morning thinking of nothing but "Just Dance" by Lady Gaga. Time to queue up Grooveshark and perform a musical exorcism.
by Cephiroth September 03, 2010