Theme Song

When I was a teenage (late teens) I occasionally watched Ally McBeal, not the greatest show, but some really good moments.  So, I remember in one episode that Ally was going to a therapist (don't remember why) and the therapist suggested choosing a theme song for her life.  I don't even remember what song she chose, but the idea of a theme song, one that you want to represent you and be played behind the montage that would play on the opening credits of your life "show" really stuck with me.  What song would I pick?  Why?  Since then I've had several theme songs.  I can't remember the first, it might have been (gasp) depressing, but since then I've worked towards a happier life and feel I have chosen very upbeat songs.  To become a theme song it has to fit where I want my life to go or something I very strongly identify with at the time.  It has to give me chills and be something I can sing to.  I don't always have a theme song, but usually I do.  The first one I remember choosing is:



Then I met Juan and this became my new theme song:


I had a short time period where this was my theme song:


Most recently this has become my theme song, I love it:


Now from this list you might think that I'm a huge Dave Matthews fan, while I do like his music, he just happens to have lyrics and a sound that I apparently identify with (certainly not true of all of his songs).  So do you have a theme song?  Care to share it?