Tough question. There were so many good songs in my opinion. It comes down to L'Alizé, Hey Amigo, L'e-mail a des ailes and Lou ou Toi. For the moment, I'll pick L'Alizé
It's kind of funny though, when I find myself in a position where I haven't been ablt to listen to her music forr a while, even though I find it's not one of her top vocals as far as the concert, .it's always this moment that comes to mind.
https://youtu.be/sz4xDGUr91A?t=411