Update: Chris Kelly Of Kris Kross' Official Cause Of Death Revealed

Chris "Daddy" Kelly of Kris Kross fame passed away at 34-years-old. As many suspected, the official cause of death has been determined to be a drug overdose. 

Reports TMZ: An investigator from the Fulton County Medical Examiner's Office in Atlanta said a toxicology screening showed the 34-year-old died with a fatal mixture of drugs in his system. 

The investigator didn't specify which drugs, but as we reported, Chris' mother told police the rapper had been doing cocaine and heroin the night before he died on May 1st. The video TMZ posted -- showing a wasted Chris trying to rap just hours before his death -- appears to back up the Medical Examiner's findings. Kelly was honored with a mention during this past Sunday's BET Awards in Los Angeles. 

Kelly's funeral was May 9 and attended by family, close friends and stars including Jermaine Dupri and Da Brat, who wore their jeans and shorts, respectively, backwards in honor of the deceased. Rest In Power Chris Kelly.

UPDATE: Chris "Mac Daddy" Death Being Investigated As A Drug Overdose

The investigation into Chris' death is underway. According to MyFoxAtlanta and WSBTV it is believed he succumbed to a drug overdose.

His mother, Donna Kelly Pratte and So So Def, the label he and his partner, Chris “Daddy Mac” Smith, found fame on released a joint statement.

“It is with deep sadness that we announce that our beloved Chris Kelly has passed away on May 1. To millions of fans worldwide, he was the trendsetting, backwards pants-wearing one-half of Kris Kross who loved making music. 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.”

The hip hop world is also mourning the loss of Mac Daddy. LL Cool J, Da Brat, Nicki Minaj, Keri Hilson and more have tweeted their condolences.