Jazz Fest Please
I came to New Orleans for the jazz but it has so much more to offer if you do a bit of research. I did a sugar plantation and swamp tour combo which was slightly pricey but most of that is down to the fact that you have to get a tourist bus out there and that's the only way to do it (unless you have a car). If you like drinking heavily head on down to Bourbon Street but if you came for the jazz, hit up Frenchman Street and Preservation Hall (just off Bourbon St.). Such a lively city!!
Insider Tip:There is actually a load of free stuff to do as well if you log onto 'free stuff to do in New Orleans' on facebook.