Taylor Swift Can't Stop Laughing at the Cop Shaking It Off

Taylor Swift leaves her Tribeca apartment with her Detective Olivia Benson cat carrier on Saturday morning (January 19) in New York City.

The 25-year-old pop singer was spotted while getting ready to run a couple of errands — including a quick business meeting.

PHOTOS: Check out the latest pics of Taylor Swift

In case you missed it, check out the cop belting out “Shake It Off” in his cop car while working.

“LOLOLOLOL THE SASS,” Taylor tweeted when she saw the amazing video.

10+ pictures inside of Taylor Swift leaving her apartment with her cats…