/art/ - Drawing, Photography, Painting

Recently I came across this video of some women performing a "comedy" music routine; in which they would portray extremely out of touch old crones for lack of a better label and play either some original or cover of a more famous song. The thing is their comedy is not that funny and their songs are not much to listen too just as audio. Nearly all their sets, their set up is as long as the song they perform. It's really the entire performance that creates their true value, the songs are more of a reasoning to their presence, rather than the main draw, while their choice of songs (or cover songs) either clash with their personalities or support them, both of which draws some sort of comedic value.

Wikipedia defines Performance art as: "… an artwork or art exhibition created through actions executed by the artist or other participants. It may be witnessed live or through documentation, spontaneously developed or written, and is traditionally presented to a public in a fine art context in an interdisciplinary mode"

I find the Kransky Sisters not to be very funny (maybe a little funny), but more so overwhelmingly interesting. They harbor characteristics vaguely familiar with individuals, both real and fictional. They emit the reminisce of a secluded, pre-Victorian subculture that would have never been acknowledged if weren't for their passion to entertain. I honestly can't tell of the eldest is doing this as some 4D larp or this is legit who she is.

What would /art/ consider as "performance art"?