Delaware Cop's 'Shake It Off' Lip-Sync Video Goes Viral

— -- The Dover Police Department in Delaware has a bona fide viral video hit on its hands.

Dash-cam video of Master Cpl. Jeff Davis lip-syncing to Taylor Swift’s hit “Shake It Off” was posted to YouTube Friday, and, as of Sunday night, it had been viewed more than 12 million times.

Davis really gets into his performance as he drives -- shaking his head and shoulders, and even taking both hands off the steering wheel of his moving squad car as he gets more animated. The 19-year police veteran said he already knew the lyrics, thanks to his 10-year-old daughter.

The department first posted the video on its Facebook page, writing: “While reviewing dashcam footage, we come across some interesting sights to say the least. We decided we would share some with you in a new web series called 'Dash Cam Confessionals.' We hope you enjoy this...and Taylor Swift if you're watching...we're sorry.”

The police department later said the video was staged and done for fun, only taking 15 minutes to shoot.

Swift herself appeared to be tickled by the video, tweeting: