'Cats' Creator Hints at Taylor Swift's Role in Film Adaptation Composer Andrew Lloyd Webber br recently divulged some information br to 'Vulture' regarding Swift's role. Andrew Lloyd Webber, to 'Vulture' Webber went on to say that she would br play either Bombalurina or Demeter, br who both sing "Macavity the Mystery Cat." Andrew Lloyd Webber, to 'Vulture' Swift does indeed love cats and isn't shy about sharing her love for them on social media. Her cats, Meredith Grey and Olivia Benson, are named after characters on 'Grey's Anatomy' and 'Law and br Order: SVU.