Complex sentence: Also during the 1990s, the label's musical base had been expanded to include kid hip hop duos, one of which was Quo, which was a short-lived group composed of Wade Robson (born 1982) and DeWayne Turrentine (born 1979).
Split into simpler sentences: Also during the 1990s,the label's musical base had been expanded to include kid hip hop duos. This duo was Quo, which was a short-lived group composed of Wade Robson (born 1982) and DeWayne Turrentine (born 1979).