I'm an alumnus of the MDB and that isnt rammer jammer. That is, as already pointed out, "Rock and Roll part 2" or "the hey song". Rammer jammer sounds similar but they are actually different songs.
Rammer Jammer is based on the Ole Miss hotty toddy cheer. which is why RJ is also known as the ole miss cheer and why the symbol drum majors use to call it up is a big O.
the differences are subtle but they are there. similar to vanilla ice's defense of why ice ice baby was not a sample of under pressure, but in this instance the differences are real.
play the two back to back and you'll hear it. they will likely play the hey song if they win and thier fans will likely sing the changed rj lyrics.
It should also be noted that the KC chiefs have a similar cheer using either the hey song or RJ tune but I cant remember which one.