Ok, this might be the longest article I've ever read online. And I barely even know Andrew W.K. (mostly because of his Gundam song covers, really, of all things... "Ai Senshi" is *excellent*).
I had some vague notion that AWK had been briefly famous at the start of the 2000s in the USA as a "party rocker", and then his career lapsed and he had become a motivational speaker, or some such.
It's a much, much deeper rabbit hole.
Read it all, if you can. It's an effin' trip.