Mobile clubbing, flashmobbing, whatever you call it, videos of these events never fail to raise a smile.
Check out the older gentleman at the end of the video, you can see him formulating a letter to the Daily Mail in his head. "...and she had BLUE hair! Can you believe it?..."
The instructions implored the dancers to,
DANCE FOR AS LONG THE MOOD TAKES YOU
According to a Londonist reader picking up a friend from Paddington, the mood took them for quite a long time - there were still some people going at midnight. They must have eaten some yellow smarties.