High Quality Content by WIKIPEDIA articles! Kris Kross was an American rap duo of the 1990s comprising Chris "Mac Daddy" Kelly and Chris "Daddy Mac" Smith. The duo are best known for their hit 1992 song "Jump", which was #1 on the Billboard Hot 100 for eight weeks and was certified double platinum as a single. Kris Kross was also noted for their fashion style, which consisted of wearing their clothing backwards. The duo sang the "Rugrats Rap" for Nickelodeon in 1993.