A Queen’s guard soldier bellowed at a tourist to move away from St James's Palace after the sight-seer was filmed doing a dance there.
The soldier, thought to be part of the Scots Guard regiment, shouted: “Haw, get yersel’ away,” before the man stops.
In the video, which has been video almost 50,000 times, the man was being filmed dancing outside the royal palace in Westminster.
And suddenly one of the uniformed guards, wearing a bearskin hat, shouts and the man and tells him to get away.
In a thick Scottish accent, the guard shouts: “Haw, get yersel' away, ye came and ye done this yesterday anaw, do him wan, turn the camera aff.”
Commenters have praised the guard for telling the man to clear off.
One wrote: “Those Guards are the first line of defence for the Crown and they see thousands of very strange people haunting London every year.”
There are thought to be guidelines in place for guardsmen when dealing with nuisances, which begin with stamping their feet and shouting.
It is unclear when the video was filmed, but it was uploaded to YouTube in January.