Jellicle cats

Jellicle cats, or simply the Jellicles, are a type of feline mentioned in T. S. Eliot's book Old Possum's Book of Practical Cats, and in Cats, a stage musical written by Andrew Lloyd Webber and based on the book.

Introduced in Eliot's poem The Song of the Jellicles, they were originally depicted as commonly nocturnal black-and-white cats. Specifically, Eliot mentions that they like to gather at an event called the "Jellicle Ball".