Officer Jeff Davis of the Dover Police Department in Delaware was filmed "getting down to this sick beat" on his DashCam, reported ABC online.
The Department said the staged video was made in 15 minutes as a bit of fun they are dubbing 'DashCam Confessionals'.
"We hope you enjoy this... And Taylor Swift, if you're watching... We're sorry," they said.
Little did they know, the 25-year-old was watching - and loved it.
Till now the video had attracted over 12.5 million viewers.