quite likely both of them were in les anges noirs,by the way its him who kes used to called vieux methode,right?

yes, he said in this interview that he used to sing with Emeneya in Anges Noires. Also saying that he studied with Godart Motemona, King Kester Emeneya and Andre Kimbuta in Kinzambi (Bandundu). The interview was very interesting, but to short. It would have been nice if went deeper in the details of the songs he gave to Emeneya, Papa Wemba, Reddy, etc. and his time in Viva La Musica. He also revealed that all songs of Modogo Gianfranco Ferre's album were his.