You know when you've heard a song, you might not even like it (but deep down you do, you know you do), it get's stuck. I usually sing the same lines over and over, and it's the same lines. And then I move on to the next song and kill everyone around me like a repeated tape. Well, right now I have this line in my head from Jumpin' Jack Flash by The Stones (of course), and I even do the Jagger-head swing and his groovy moves that goes along with it: