Related: Cat's Grumpy Reaction to Waking Up Is All of Us in the Morning Geez, this cat really has it out for his mom's boyfriend. And just look at how serious he is, for all we know, this little ...

Geez, this cat really has it out for his mom's boyfriend. And just look at how serious he is, for all we know, this little guy could be the John Wick of cats, LOL.

At the time of her death in 2019, Tardar Sauce had 2.4 million Instagram followers and 8.5 million Facebook likes. Since Grumpy Cat's reign ended, other sour-faced felines have delighted the internet.