Cajun last names are rooted in French, Acadian, and Creole culture and can be incredibly tricky to say. Even people from Acadiana can disagree on pronunciation.
Ever heard the term Creole? I'm sure you have, but do you know what it really means? A lot of people don't, but I promise you one thing, if you get a chance to check out the Creole Renaissance Festival this Saturday you'll get a good idea.