yes,its impossible to survive in congolese music without other investments,other business or sponsors who bring extra money,which is why many talented guys go nowhere in solo career because they do not have the good context around

Many Congolese people don't understand that. I hate it when careers of some artists flop and those people then saying that they were nothing and that their boss was doing everything, not knowing that the musicians are contributing alot behind the scenes and that they don't have alot of support when they start their solo-career compared to their former boss who has contacts with policitians, tribal-chiefs, contracts with beer and phone-companies, etc.

I thought that Djudjuchet played on Signature because Wazekwa gave him at some point a shout-out in the song dedicated to Vidal Matumona.

No, it's Doudou Tcheke Dimolo, who also played on Mosapi Liboso, Faux mutu moko boye, Yo nani, Sponsor (i think that Djudju helping him in Kinshasa like on Viagra with Robert Mylhene aka Tshe Tshe de Balle), Que demande le peuple, etc. But i don't know that he was still there...