On Friday Jan 16, 2009, T-Mobile launched its new commercial, filmed at Liverpool Station in London. The telco used 400 dancers and 10 hidden cameras. No one but the station employees and dancers knew what was going on.
What’s cool is the number of travellers in the train station who spontaneously joined in on the fun, taking photos and videos with their mobile phones.
It was later aired on YouTube and TV.
UPDATE: Thanks to Robyn from Atlassian for pointing out the more recent T Mobile “Life’s for Sharing” commercial, featuring over 13,000 people singing “Hey Jude” in London’s Trafalgar Square. Here it is: