Chris "Mac Daddy" Kelly, one half of the rap group Kris Kross, has died at the age of 34.

The cause of death won't be known until autopsy results are available, but police are investigating it as a possible drug overdose.  Kelly was pronounced dead on Wednesday afternoon around 5 p.m. at the Atlanta Medical Center.

Kris Kross debuted in 1992 with their biggest hit "Jump" from their multiplatinum album Totally Krossed Out.  The album also featured the single "Warm It Up."  Kelly was just 13 years old at the time of the album's release.

"The news of his death is wiggida wiggida wiggida wack.  I love this song.  RIP Mac Daddy." - Shaffee