Dude!!! This rocks! I´ve seen that creepy guy with progenia rappin on his youtube channel some months ago. Pretty funny stuff.
Have a link? Don't know that guys name.
The creature is Leon Botha, visual artist and Dj, also goes by the name Dj Solaris. He often performs with Die Antwoord but he's not part of the crew.
At 24 he's the oldest living Progeria survivor. It's a genetic growth disorder. Most don't live past 13.