Jodeci is an American musical group  active from 1990 to 1996  whose repertoire included R&B  soul music  and new jack swing The group consisted of two pairs of African-American brothers from Charlotte  North Carolina: the DeGrates (Donald "DeVante Swing" DeGrate  the group founder/leader  and Dalvin DeGrate) and the Haileys (main lead singer Cedric "K-Ci" Hailey and second lead singer Joel "Jo-Jo" Hailey)