Cirque Du Soleil

A cast member of the traveling Cirque du Soleil suffered a fatal fall this weekend, dying at a hospital after an aerial stunt went terribly wrong ... and video of the incident has just surfaced.

The acrobat, Yann Arnaud, was performing during a live Cirque du Soleil production of "VOLTA" in Tampa Saturday night when he fell onto the stage during an aerial straps number.

In the video, which has since been deleted, you can see him swinging back into view when he somehow loses his grab on the strap and awkwardly lands head first. Crew members immediately rush to his aid, and the crowd is clearly in shock from the brutal fall.

Cirque du Soleil issued a statement saying emergency procedures were implemented and that Arnaud was transported to a local hospital. The company says he died from his injures sometime later. He'd reportedly been with the company for 15 years.

The dancing FREAKS who star in the Michael Jackson Cirque du Soleil show were so AMPED UP after the debut performance in Canada Sunday night ... they rolled over to the after-party and unleashed ANOTHER killer performance.

It all went down at the "Gare Windsor" in Montreal -- while MJ's brothers Marlon and Jackie watched from the DJ booth.

The world tour is a partnership between the MJ Estate and Cirque -- each sharing 50% of the profits. It will kick off in the Fall of next year in Canada, and work its way south to the US of A.

The show will end up with a permanent home at the MGM Mirage hotel in Las Vegas -- probably in late 2012. Cirque has already released sketches of what the show will look like.