WorldStarHipHop founder and CEO Lee O'Denat, better known as "Q", has died.

Q,  who founded the premiere hip-hop website in 2005 when he started posting mixtapes, which gradually progressed into a mash-up of hip-hop videos, fight clips and other outrageous camera footage, died in his sleep Monday night. 

An autopsy was scheduled for today. Sources are speculating that he died of a heart attack.

He was 43.