Update

From The Associated Press: The mother of rapper Chris Kelly has told authorities her son became sick after taking cocaine and heroin on the night before he died.

Kelly, half of the 1990s teen rap duo Kriss Kross, was found dead Wednesday of a suspected drug overdose.

According to a Fulton County police report Kelly's mother, Donna Kelly Pratte, and his uncle told authorities the 34-year-old Kelly had a history of drug abuse and experienced similar episodes in the past.

Paramedics found Kelly unresponsive on a living room couch at his Atlanta home and tried administering CPR.

 Chris Kelly of Kris Kross performs on stage at the Fox Theatre in Atlanta, Georgia during the So So Def 20th Anniversary Concert, in this photo taken
Chris Kelly of Kris Kross performs on stage at the Fox Theatre in Atlanta, Georgia during the So So Def 20th Anniversary Concert, in this photo taken February 23, 2013. REUTERS/Jonathan Phillips (Jonathan Phillips)
He was later pronounced dead at a local hospital.

Betty Honey of the Fulton County Medical Examiner's office says Kelly's physical examination is complete. She said a toxicology screening is being done to determine cause of death.

Original report

May 02 (TheWrap.com) - Chris Kelly, one half of teenage rap duo Kris Kross, died Wednesday, his mother and record producer said in a statement. He was 34 and died of an apparent drug overdose.

Cpl. Kay Lester, a spokeswoman for the Fulton County police, told TheWrap that local police were called to Kelly's Atlanta area home with reports that he unresponsive. Emergency workers administered CPR and he was later transferred to an Atlanta area hospital. Lester said evidence turned up at Kelly's home indicated that drugs were the cause of death.

"We are investigating it as a drug overdose unless the toxicologist report says otherwise," she said.

Kelly was known for his off-kilter fashion choices, which involved wearing his clothes backward, as well as for his hit single "Jump." The anthemic rap song became nearly ubiquitous when it hit the airwaves in 1992, climbing up the charts to the number one position on the Billboard Hot 100 chart.

Kelly went by the name "Mac Daddy" while his fellow Kris Kross collaborator Chris Smith used the moniker "Daddy Mac."

"To millions of fans worldwide, he was the trend-setting, backwards pants-wearing one-half of Kris Kross who loved making music," Kelly's mother Donna Kelly Pratte and record producer So So Def Recordings said in a statement. "But to us, he was just Chris – the kind, generous and fun-loving life of the party. Though he was only with us a short time, we feel blessed to have been able to share some incredible moments with him. His legacy will live on through his music, and we will forever love him."

Kelly and Smith were discovered by producer and rapper Jermaine Dupri in an Atlanta shopping mall in the early '90s. It was Dupri who helped them craft their distinctive, propulsive sound and who penned "Jump" for their debut album "Totally Krossed Out."

That record would go on to sell four million copies -- a benchmark the duo never matched with either of their two subsequent albums. They would go on to have other hits such as the 1995 single "Tonite's tha Night" and landed their own Sega game,"Kris Kross: Make My Video," but continued success proved elusive.

Kris Kross broke up in after releasing their third album, "Young, Rich & Dangerous," in 1996.