A group of singing sewermen are doing it "Gangnam Style" in the sewers of London.
The Thames Water workers have released a YouTube video entitled Sewerman Style - influenced by Korean pop star Psy, whose song Gangnam Style has more than 900 million hits on Youtube.
The new video urges people to not wash turkey fat down their sinks at Christmas.
Click here to watch their latest video.
More top news
A new mansion on The Bishops Avenue in Hampstead has been bought for £33.7m.
London's mayor has launched a campaign to inform Londoners about tips to cope with air pollution.
Three-quarters of Londoners think their area is undergoing a housing crisis, according to a poll from the Chartered Institute of Housing.