Yes, he is doing "performance art." I am very familiar with it. I went to a performing arts high school. It can be fascinating, but usually bizarre. Doesn't usually take a whole lot of talent either, just guts and exhibitionism.
I did not go to any art school, but that is my interpretation of performing art as well!
p.s. Does my Streaking in HS count?
It could. Did you get government funding and advertise? Did you call it some creative title or just plain streaking?
Shazbat! I never applied. But I struck on a Puegot 10 speed in an Alice Cooper hat! Does that count? (in the middle of Winter in Germany no less! And yes it was Cold!)
I will give you an insightful for that just on sheer courage and hutzpah!