We will fight to the very last man

Here's a slice of Australian Bogan rock from the early eighties:

The reason I'm posting this here is becuase I can very easily imagine a whole lot of Orcs, Trolls, Tauren, Blood Elves and Goblins (and Pandarians) all rocking out to this.
It may seem odd to you, the reader, but this to me sounds very much like a Horde song - okay sure none of the Horde races are actually friends with each other but this sounds like one great big rallying call

And the fact I can't imagine any of the Alliance races singing this is better still.