Jagged Edge is an American R&B group that were originally signed through Jermaine Dupri's So So Def Records to Columbia Records. The group is made up of twin lead singers Brian and Brandon Casey (both born October 13, 1975), Kyle Norman, and Richard Wingo. Wingo was a late addition to the group, added after Kandi Burruss of Xscape recommended he be added. Kandi was also the one who brought the group to the attention of Dupri. The group has had a number of hit singles, many of which are produced by Dupri.