Cats purrs into theaters on December 20, and on The Tonight Show Starring Jimmy Fallon Wednesday night (December 18), the world got a fur-less preview of what to expect when Taylor Swift, Jason Derulo, Jennifer Hudson, James Corden, and Francesca Hayward all came to the stage to sing Andrew Lloyd Webber's nostalgic tune from the Broadway show, "Memory." Their rendition of the classic featured Fallon and The Roots along with some awesome classroom instruments.

Fallon himself led the classic tune with a sweet introduction before passing the baton to Swift, whose soft vocals really opened up the atmosphere. Derulo's booming tone provided a nice change of pace that was followed by Hayward's shimmering and delightful voice. Corden came next with a surprisingly warm voice before Hudson completely owned the room with a bold and powerful performance.

Everyone played instruments as they sang, too, striking everything from buckets to tambourines. Swift had the cattiest instrument of them all: the milk bottle. If this doesn't make you even more amped for the movie, I don't know what to tell you!

The first reactions to Cats have been pretty wild. Apparently, it's both "horny" and "bewildering" (which is apparently possible). While waiting for the film to slowly slink its way into theaters, this performance may be the best bit of catnip that you'll find around.

Check out the Cats cast's epic cover up above.