Jellicle cats 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 gray, scruffy cats. Specifically, Eliot mentions that they like to gather at an event called the "Jellicle Ball". In the musical, a sub-plot surrounds the disappearance of the Jellicle patriarch Old Deuteronomy. The names are taken from Eliot's poem "The Naming of Cats"
What Was Missing Jake joins in; the band disbands. Finn, dismayed at his friends' behavior, sings "My Best Friends in the World", bemoaning the fact that his friends are fighting. Bubblegum, Marceline, and Jake join in, and the four are able to open the door. Inside, Finn, Jake, and BMO reacquire their belongings. The group also finds a black rock T-shirt which they mistake to be Marceline's. However, it is revealed that it is Bubblegum's; it was a gift given to her by Marceline in the past. Finally the group turn to Marceline, asking what she had lost. When they realise she only