Exotica's outfit keeps changing. For example in the credits when they show who played what cat she's shown in a black outfit, but several times during the show she is in a tabby outfit similar to the other cat's. This switching back and forth is noticeable especially during the Skimbleshanks song, she's sitting at Old Deuteronomy's feet, keep and eye on her! If the changes had just been between songs I'd have assumed that she was changing characters, but it actually changes from various camera angles!