That’s how the cats joined in.

We started because the Pitt/mix needed to wear some items of clothing (long story, she was this way before I adopted her).

When my significant other and I bought our house, the dogs and cats mixed, the the orange cat (snarf) saw the doing doing hats, he tried doing the tricks I was teaching him, to get treats too.

So we tried the hats, and over the course of a few months, all of the cats were joining in.

Now I bring out the ring light and a hat, and I have a full house at the bottom of the stairs.