VIRAL VIDEO: Daredevil is first person to run through loop-the-loop

A daredevil free-runner in the UK has defied the laws of gravity, becoming the first person ever to run through a loop-the-loop.

YouTube video shows Damien Walters sprinting through the 10 foot high, 360-degree loop.

Walters is a former trampoline world champion, Hollywood stuntman, and free-runner, which is an acrobatic form of parkour.

It's not just his physical ability that helped him run the loop. Walters worked with MIT engineers for four months to figure out how to finish the run. They found out he needed to maintain a velocity of 8.65 miles per hour.

Walters practiced with mats underneath until he finally tried it without them.

His attempt was sponsored by PepsiMax.