I know this is an old thread, but Epsilon Upsilon Zeta from Tulsa play the original and know why. I do not know who started the tradition or when, but I do know why. All I can say is watch the video... which is the answer that I assume Brother docroc67 is referring to. Anyway, I love hearing everyone speculate on the origins myth, members of the band, etc. but a good authoritative article on why the song ORIGINALLY had nothing to do with LCA is found here
https://www.jasonpearce.com/2006/07/...r-our-members/
However, just because it may not have originally had anything to do with LCA does not mean that it doesn't now.
Always,
ZAX
Epsilon Upsilon 1441