groups/bands havent been in the fabric of either the mainstream or underground black music scenes for at least two decades. tony toni tone, mint condition and those guys couldnt influence people into forming groups/collectives/whatever rather than become solo artists, so i dont really see it happening, esp not with things how they are these days, for the reasons already mentioned upthread. more likely is duos like j davey, or heavy, cos thats more manageable, and budget-friendly, and theres less problems with egos. these days producers are electronic so like to have full control - working with just one singer is therefore easier and less problematic for most of these guys. be nice if they understood that most of the best music/art is collaborative on some level, but they wont/dont.