Kris Kross was an American hip hop duo composed of rappers Chris "Mac Daddy" Kelly and Chris "Daddy Mac" Smith and formed by record producer Jermaine Dupri. They were the youngest hip-hop group to gain commercial success, charting releases by the age of 13. Smith and Kelly were discovered by Dupri in 1990, with whom they signed as the first act on his record label So So Def Recordings. The duo saw national recognition with their 1992 debut single, "Jump",... [more on Wikipedia]