Joe Alwyn Supports Taylor Swift at 'Cats' World Premiere!

Joe Alwyn may not have walked the red carpet at the world premiere of Cats, but he was there to support his longtime girlfriend Taylor Swift on her big night!

The hot couple was spotted holding hands while leaving the event at Lincoln Center on Monday night (December 16) in New York City.

Taylor, 30, and Joe, 28, have yet to walk a red carpet together, though they often do support each other at premieres and special events.

FYI: Taylor is wearing an Oscar de la Renta dress and coat, Chloe Gosselin shoes, Maxior earrings, and rings by Borgioni and Beladora.

MORE PHOTOS: See what the rest of the Cats cast wore to the premiere!

20+ pictures inside of Taylor Swift at the Cats premiere…