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.

Related: Kitten Demands 'Special Sauce' on His Food Like the King He Is. Heartstring tug, right? This sweet young cat stepped right in to be a mom to the little guy.