I heard Allen Toussaint at a very small venue in Chicago. I recommend that others seek him out.
I’ve seen Toussaint play at some small venues and with Elvis Costello at the NOLA Jazz Fest. Very entertaining.
Don’t see him for the line up this year. But he has on occasions just shown up and played with others.
09 Jazz Fest Line Up if interested.
http://blog.nola.com/keithspera/2008/12/2009_new_orleans_jazz_and_heri.html