Santa was very good to me and, among other things, brought John Mellencamp's On The Rural Route 7609 box set. I've only listened to 2 of the 4 CDs so far, but I'm loving it. And example of what's included is this from the end of the first CD: Jenny at 16 followed by a writing demo of Jack & Diane followed by the final version of Jack & Diane. As soon as I heard Jenny at 16, I realized that it was a very early version of Jack & Diane. Pretty cool to hear that and then a short acoustic demo and then the full electric version that came out when I was in college.