Martin gives us some info -- Gaudeamus Igitur TTBB

I found the following links about "Gaudeamus Igitur" that you might find interesting (I can see that smirk on your face as you read the second paragraph of the first link...). Hope you enjoy.

Here's a little bit on the background of the ancient tune and Student tradition of "Gaudeamus Igitur".

http://en.wikipedia.org/wiki/Gaudeamus_igitur

An interesting read on how the tune as we know it today rose to its present day popularity (Brahms):

http://en.wikipedia.org/wiki/Academic_Festival_Overture

If only you were a little more proficient in the German language, the German version of Wikipedia has soooooo much more interesting detail about the song:

http://de.wikipedia.org/wiki/Gaudeamus_igitur