this is one of the many examples of the " petit vanda nanu" system in the big groups,he was mainly working with genta and celllulaire with the hope that jb would spot him(similar situation for example with bercy and the guys who did sous sol in maison mere or more recently 5 chaniers )
by the time jb really noticed him he was joining fally,lol those leaders test and recruit so many guys( or people do it for them) that at the end they do not even know some of their musicians(like werra once calling the guy who imitates lacoste "oh monsieur"

)