This is a very nice video; pleasant, fun and cute. It makes a nice change from a lot of the stuff we bump into on the internet nowadays. I am always up for a bit of pleasantness to offset the less pleasant stuff. We owe it to ourselves. It is interesting that the video maker made this work. The kittens are genuinely interested in the mirror ball and the disco lights have become laser pointers; more cat toys. It works great.
I don’t know where it was filmed or who made the video. The kittens look as if they could be one litter. One of them is bobtailed.