Hopefully this will help you figure it out. I'm assuming you don't have the 2008 LE dvd. On the back of the cover, they have a list of the songs along with who were the principal singers.
You can also go to the Les Enfoires website.
https://www.enfoires.fr/en/
Click on "ENFOIREPEDIA"
Then click on shows and it will list each show and you click on one and it will give you the same info.
You can also use the other search boxes to see what years a particular singer was in a show and what songs they sung.
Attachment 2333
Les Enfoires 2008 songs and singers 2.jpg