Awesome drumming

Found this video via digg...
I'm not a big fan of the rap part, but the drumming was intense. Though I have to wonder (as someone who has no formal training in drumming), is this a "technically" difficult piece to play? Or is it just awesome cause the guy is putting on a show, what with all the Tats, the head bobbin, etc... Regardless, The beat and melody are rockin.
(note: I did not even attempt to figure out the lyrics, only word I could make out was Reebok's ;)