Great topic!
A few years ago there was a study with the same conclusion - that time - it was what sports teams and heroes teens had - perpetuated into adulthood.
There is a lot of science behind this, some of which is just in last week's Newsweek.
Google: Newsweek, Sing Brain, Sing - and you can read it. The scientist in it, has written two books on it and has produced Steely Dan and Stevie Wonder records. Very weird, since I saw both this summer, after waiting 40 years for both.
McCartney's concerts really flood the ole' DNA and makes me feel like I dropped acid.
