'Cats' trailer debuts starring Taylor Swift, Idris Elba and Jennifer Hudson

Broadway fans, stay calm: a trailer for the film adaptation of "Cats" is here.

The video, which runs more than two minutes, gives us the first look at Taylor Swift in character as Bombalurina, as well as Judi Dench, Ian McKellen, Jason Derulo, Idris Elba, James Corden and Rebel Wilson all digitally covered in fur, yet still recognizable.

Jennifer Hudson, as Grizabella, belts out the movie's best-known number, "Memory."

"I am a cat now and somehow that was everything," Swift wrote on Instagram.

Based on the wildly popular musical of the same name, "Cats" follows a group of "Jellicle cats," who vie to be selected by their leader, Old Deuteronomy, to travel to the "Heaviside layer" to start a new life.

"Cats" hits movie theaters Dec. 20.