From Lake Ponchartrain to the river, New Orleans will be free.
Let's try...
"From Lake Pontchartrain to the river levee, Chocolate City will be free".
See, with the rhyme and meter smoothed out, it works better through a bullhorn.
Kenner... historically pronounced "Ken-nuh" by the locals. Over the past twenty years or so, people moving *out* of Kenner took to using the "Ken-yuh" pronunciation.