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Dover Police Master Cpl. Jeff Davis -- whose lip-syncing to Taylor Swift's hit "Shake It Off" went viral last week -- returned for an encore performance at a benefit event, Dancing With the Delaware Stars.
The 19-year police veteran has said he knows the lyrics because of his 10-year-old daughter.
The police department later said the video was staged and done for fun, only taking 15 minutes to shoot.
Swift herself appeared to enjoy the dash-cam video, tweeting: