Elton John and Billy Joel singing each other's songs. It was as fun as it sounds. The concert starts with Billy coming out on the stage to Yankee Doodle! It was worth the money. I did learn something. I now know why not many fat people go to U.S. Airways Arena in Phoenix. I was afraid once I got my ass wedged into that 10 inch seat that I would need the assistance of a crane to get out. I'm hitting the gym early today!!!