Hi Jeri, I do sing that Congo River one but I don't think I did it that night maybe I did a fast rowing shanty, "Hell Of A Wedding On The Congo River":

What a hell of a wedding on the Congo River
Way, hey, hey me bully boys
Monkey got married to the Babbon's daughter
Way, hey, hey, hey me bully boys.

Would that be the one you were thinking of? Still I liked that Yangtze River one but I don't remember who did it.

Barry