proper rumba and he got some really decent singers aswell(even though they got those basic vocals which all of us can create)
as for kabose's success maybe i am wrong but i feel like he is victim of the "generation factor",none of the guys born before fally and ferre and after jb and werra has made it very big so far,the best they do is either start strongly with a group like alain mpela,or have at least one good hit in each album like kabose(except election) or struggle like most of them,but they never have that strong hype around them like fally and ferre