If you go to the YouTube home page and enter New Orleans music in the search box, this video is the first result***: Kermit Ruffins, "Drop Me Off In New Orleans", with Jam in the Van parked outside his Treme Speakeasy. Sounds about right!
Like all Jam in the Van videos, you get an unusually intimate, and a just tiny bit claustrophobic, experience.
Jam in the Van videos of other New Orleans acts: Khris Royal, Stooges Brass Band, Sasha Masakowski, & Anders Osborne.
***Note: the default sorting of the search results is by "relevance"; if you choose, "view count" or "upload date", you get different results.