(Yahoo!) - There's nothing that puts a damper on one's Harlem  shake faster than getting busted by the cops - as a group of Russian buddies  quickly found out when performing the dance craze on top of a war memorial in  their town.

The five friends filmed their performance for YouTube and carefully followed  the correct procedure: One dancer grooved alone for about 30 seconds, then the  rest joined in -- some of them jumping on the memorial, which is an army tank  from World War II.