heritier was still living with celeo at that time and in order to prepare his song for a la queue leu leu celeo called japonais zoulema who is the author of most of the song,soleil and jipson at the same time then mosaka and fally joined them and they all worked together on j en ai assez then all also worked together on drapeau blanc in the same period hence why at some point soleil shouts out japonais and heritier,and when i mean rehearsed it its not one day but like over a month repeatedly,and thats where for example kabose who also joined the lot rehearsing and soleil heard that "balobi nakende mbetenge" vocal from zoulema
now never in the craziest world say emany would rehearse a song with ilunga and ferrari to present to fally or vice versa,the mere mention of them seeing guys of those two groups who grew up together either gets you in trouble or in a long process of apology
leaders themselves dont deeply mind it but the jesters and admis play no game with that