What Song To Use?

Despite my working later than usual this week (so far), I'm already stressing about a radio show I'm going to be hosting next Thursday (see below). Since I can play anything I want, I'm bringing the entire show in on my iPod. I'm so not kidding. Listen, if you were given the chance to do one radio show for the year, you'd want it to be good too. I'm in the process of putting together a 4-hour-long playlist. I will of course post it here, but I'm having trouble with what song should start it all off. What would you start with?