Is what's on your iPod a true reflection of who you are? Celebrity iPod mix are all the rage on iTunes. You can download your favorite Celebrity iMix anytime. Students at Washington University in St. Louis have psychoanalyzed what lies behind these celebrity's song selection. They have selected President Bush, Eric Stoltz, Tom Brady and Robert Downey Jr as their subjects. We would have summarized it for you, but these guys got in deep. Read what their complete diagnosis is.