Music I Can't Get Out of my Head

For the longest while, I thought that it was a Monkees song. You know, it had that poppy, fast-paced and chorus-heavy style I associate with their work. Know what I mean?

But no.

Take a look at the song I've been head-playing since Saturday...

http://www.youtube.com/watch?v=SbKGsEK_T9g

(Darn Lennon and McCartney anyway...)