The upcoming Cats movie already looks larger than life. On Thursday afternoon, Universal Pictures gave fans the first look at the live-action adaptation of Andrew Lloyd Webber’s Broadway musical, which hits theaters on Dec. 20. In the short trailer, we finally get to see what Taylor Swift, Idris Elba, Jennifer Hudson, and more stars look like in cat form. To be honest, it’s both intriguing and a little unsettling. Even though the crazy transformations are a lot to wrap your head around, you will no doubt get a little bit emotional as Hudson belts out the big number “Memory.” Watch the first trailer, and then get a behind-the-scenes look at the film below.