What song is stuck in your head (or on permanent rotation in your CD or MP3 player) these days? Why does it speak to you?

I have an entire playlist on Spotify devoted to these sorts of songs. I call it my Tingles list because each of these tracks speaks to me, and when the songs play, I feel actual tingles wash over me. Each of these songs mean something to me, and there are stretches of popular artists. Some artists that immediately spring to mind is Daft Punk, MIKA, Imagine Dragons, and Gustav Holst. That's actually the musical theme of my life – I'm nearly impossible to pin down and always have been. When I was growing up, back in high school I used to frustrate people I was acquaintances with because I defied musical categorization. Amongst these tracks, I would say the number one that jostles to the top more than not is MIKA's Toy Boy. That track has a profound emotional weight that hits me square between the eyes each time I hear it.