We're doing some sort of training during lunch today, so here's the Imperial March:
Join us below the cut for more variations on the theme...
This one isn't too different; it's performed by the band Epica (whom you really ought to check out, if you're not already acquainted with them) on The Classical Conspiracy:
In dubstep (because, um, reasons):
And I don't even know how to classify this one:
Finally, because I can: The Star Wars Gangsta Rap!