They created this routine in less than a week and actually won the competition.
The gayageum or kayagum is a traditional Korean zither-like string instrument, with 12 strings.
You can skip to 1:00 to see the actual dancing
Almost better than what you can watch on TV…
“The Walters and Shieff show is about a world famous stunt man and a freerunner coming together, showing us their combined disciplines and getting creative in an adult playground!”
Filmed during the Top Gear Festival Sydney 2013
Don’t know if the guy has some particular condition (Parkinson?), but he sure is really into it anyway