Macho Man Randy Savage -- one of the greatest wrestlers of all-time -- died today, May 20, 2011, in a car accident in Seminole, Florida.
Randy's brother, Lanny Poffo, says the wrestling legend suffered a heart attack while he was behind the wheel around 9:25 AM ... and lost control of his vehicle.
Randy was driving his 2009 Jeep Wrangler when he veered across a concrete median ... through oncoming traffic ... and "collided head-on with a tree." (Click here to watch the video of the wreckage)
He was then transported to Largo Medical center, where he died from his injuries.
Savage's wife was a passenger in the vehicle during the collision -- but survived with "minor injuries." She was transported to a different local hospital where she was treated.
According to officials, Randy and Lynn were both wearing their seatbelts at the time of the accident.
Cops say alcohol was NOT a factor.
An investigation into the accident is underway and an autopsy is set for tomorrow.
Savage was 58.
Macho Man began wrestling in the WWF in 1985 and became a superstar with his trademark catchphrase "Ooooooh Yeaahhhhh." Savage was so popular, he became the spokesperson for Slim Jim in the mid '90s ... and became virtually synonymous with the brand.