A lip sync battle between Texas police departments that began last month is spreading nationwide and racking up millions of video views.



After appearing to begin in Central Texas, the challenges spread from one department to another until the eventually ended up going out of state.



The videos show officers lip syncing various pop songs -- most from behind the wheel of a patrol car, but some involved more elaborate shoots such as the one published earlier this week by the Norfolk, Virginia Police Department.



We've embedded a number of them below -- if we missed one, email us at newstips@nbcdfw.com and we'll get it added to the list.



Arlington Police Department

Aubrey Police Department

Austin Police Department

Bedford Police Department

Brownsville Police Department

Cedar Hill Police Department

Cedar Park Police Department

Corinth Police Department

Corinth police did not allow their video to be embedded, but you can see it on Facebook by clicking here.

Dallas Police Department

Denton Police Department

Farmers Branch Police Department

Flower Mound Police Department

Fort Worth Police Department

Frisco Police Department

Georgetown Police Department

Grapevine Police Department

Hickory Creek Police Department

Hurst Police Department

Irving Police Department

Laredo Police Department

Rowlett Police Department

San Angelo Police Department

San Antonio Police Department

Sherman Police Department

Southlake Police Department

Sulfur Springs Police Department

Weatherford Police Department

Weatherford police did not allow their video to be embedded, but you can see it on Facebook by clicking here.

Wylie Police Department

Elsewhere

Winchester, Virginia Police Department

Norfolk, Virginia Police Department

Owasso, Oklahoma Police Department

Monroe, Georgia Police Deparment

St Helens, Oregon Police Department