Really dope pianist

So, I'm waaaay out of the loop because this guy's got millions of views on YouTube (my new favorite hang out) and I never heard of this dude until earlier today. If you're anything like me, the word 'pianist' still makes you chuckle but this guy is seriously good. And I'm serious too about the word 'pianist' making me laugh. Doctors say I have the brain of an 8 year old but how many 8 year olds can really write their name in pee after drinking a 12pack? So, I'm probably more like a 10 year old and I'm a 'peein'ist'! (poo poo platter never gets old either) People who play piano should be called 'pianoers'?