![Big Pokey](https://cdn.statically.io/img/imagez.tmz.com/image/e2/4by3/2023/08/02/e24c2ce802f24ecb93e1299eb49a9553_md.jpg)
Houston rapper Big Pokey collapsed mid-performance back in June ... an unfortunate result of a heart attack, his autopsy has revealed.
Tom Gillam III, Justice of the Peace for Jefferson County, Texas, signed Pokey's death certificate this week ... highlighting the medical condition.
Play video content![](https://cdn.statically.io/img/imagez.tmz.com/image/fa/16by9/2023/06/18/fac480a19c084e2fadf1237ca017df7d_md.png)
"The cause of death, in layman's terms, 'Big Pokey' had a massive heart attack ... He had hypertensive and atherosclerotic cardiovascular disease," Gilliam said in a statement.
Pokey collapsed while performing at a bar in Beaumont, TX on June 18 and died shortly after being rushed to a nearby hospital.
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