WATCH: Red Sox vs. Cardinals? No, Boston Symphony vs. St. Louis Symphony!

This baseball post-season, Classicalite has featured several videos of orchestras proudly showing off their teams' spirit.

But for the 2013 MLB World Series, the brass sections of the Boston Symphony Orchestra and the St. Louis Symphony Orchestra decided to take their fandom even further. Having filmed a smackdown in which they taunt each other over past rivalries, the BSO and SLSO continue with a collaborative performance of "Anything You Can Do, I Can Do Better" and "Take Me Out to the Ball Game," recorded in and around their respective concert halls.

The video was posted to YouTube on the morning of Game One, and already, it has more than 100,000 hits. A true viral phenomenon, "Orchestral World Series: BSO vs. SLSO" has since received mention in the New York Times and on NPR.

The series between the Boston Red Sox and the St. Louis Cardinals is now tied, 1-1. Game Three, at Busch Stadium in Missouri, will air at 8:07 p.m. EST tonight on FOX.

Of course, Seiji Ozawa isn't the only conductor to show some Beantown spirit. Andris Nelsons, the BSO's newly-named music director, has also been known to suit up. Yes, indeed, it's good to see Maestro Nelsons showing his true colors.

In the past, baseball fever has also struck the entire St. Louis Symphony Orchestra. In fact, here's a video from two seasons ago of the entire band (including California-born music director David Robertson) decked out in Cardinal red.

Following the 109th edition of Major League Baseball's championship series is obviously very important to the BSO and SLSO musicians shown above. However, the question that Classicalite is most interested in is below...

"WHO WILL WIN the ORCHESTRAL WORLD SERIES?"