As Bombalurina, Swift has just one line of dialogue and one song in "Cats." But when she sings "Macavity: The Mystery Cat," she makes an impression and proves she's a pro. Entering the scene on a dangling moon high above the rest of the cast, she lets loose with a sultry performance and even pulls off a British accent. It must have been quite the challenge, even for Swift, since the songs were recorded not in a studio, but live on set, according to USA Today.
As it turns out, creating the scene was a bit of a family affair. "My dad is the most social, friendly man in the world. He has lots of ideas," Swift told Variety. "And so in the middle of this meeting, Dad just pipes up and says, 'Hey, I got an idea. What if you had a scene where they are all at the Jellicle Ball and they all get catnipped so they all just start going crazy?'" His idea made it into the movie — definitely a win for Dad. And it must have been fun for Swift to witness, too.