Beautiful Kittenfish is a song that only appeared in the 1971 cartoon, The Cat in the Hat. The music is based on Stephen Foster's 1862 parlor song, Beautiful Dreamer.
- The Cat in the Hat: Krinkle-fish, old fellow, your little fish nerves are so jumpy-wumpy. Fishenstein, poor fellow, your little heart's going bumpy-wumpy. Fishber, old fellow, I know what you want. You need a small tranquilizer, you do indeed. Poor, troubled Krinkle-fish friend, just relax, close your eyes. Your good old Uncle Cat will now proceed to tranquilize you.
- The Cat in the Hat: Beautiful kitten-fish, sleep, baby, sleep. Your eyelids are droopy, bloop, bloop, bloop, bleep, bleep.
- The sandman on tiptoes comes creep, creep, creep, creep. Hush your mouth, Shush your mouth, sleep, sleep, sleep, sleep.
- Safe in your beddy-bye, sweet dreams to you. With your teddy bear steady by, bloo, bloo, bloo, bloo.
- Beautiful kitten-fish, sleep, baby, sleep. Bloop, bloop, bloop, bloop, bloop, bloop, bleep, bleep, bleep, bleep.