I got an e-mail from adidas yesterday about this new site where it shows the theme songs for MLS teams. Famous musicians record diffeent songs about their home town MLS team....artists include Ok Go, Barenaked Ladies, and more.
My personal MLS team is New England Revolution, and the band Damone, from Boston like me, made an awesome Song called Revolution. I'm pretty sure there's even a rap song for the LA Galaxy I think. Check which song for your favorite team there is and see if you like it: