Jan 28 2009 11:36AM GMT

Overheard – Viral marketing at its best

Margaret Rouse Profile: Margaret Rouse

Celeb Choreographer Ashley Wallen took the dancers through an intensive 80 hour rehearsal to ensure they nailed the performance as they could only film a single take. Commuters stand and watch in amazement as the routine gets going and many can be seen taking pictures on their phones still unaware of what is happening around them.

Karl Walderman, T Mobile Liverpool Street Station flashmob ad storms YouTube

By now you’ve probably heard about the T-Mobile flashmob at the Liverpool train station. What a brilliant piece of marketing.

Here’s the official press release.

[kml_flashembed movie="http://www.youtube.com/v/mUZrrbgCdYc" width="425" height="350" wmode="transparent" /]