Ours was "Paradise by the Dashboard Light" - I swear, I could sing the thing in my sleep.
Some of the other fraternities' & sororities' local songs were Joy to the World, Come Sail Away and that Wild Women Do song from Pretty Woman (yeucccccccchhhhhh!).
The best however was a night out when 3 of my sisters & I were the only females left at the bar and the "football frat" sang "You've Lost That Lovin' Feeling" to us - just like in Top Gun!! That still makes me smile
every time I think about it.