Somewhere I'd heard when they didn't announce the participants a year or two ago for a previous Les Enfoirés show that it was because they wanted the show to be about the cause rather than the participants. Since they sell out each night I guess they can get away with that.
Unrelated to Alizée being there or not, earlier this year, not long after the 2015 show was over, there were articles that JJG was going to 'turn the show over to the younger crowd' and perhaps not participate, or participate less. It will be interesting to see if this happens this year and what changes they make.
http://alizeeamerica.com/forums/show...0&postcount=27
http://alizeeamerica.com/forums/show...8&postcount=28