T-Mobile invited thousands of people to Trafalgar Square to record the follow up to the 'Liverpool Street Station' advert
T-Mobile provided the crowd with microphones and then got them to sing along to a number of tunes including Britney Spears' "Hit Me Baby One More Time", The Foundations' "Build Me Up Buttercup" and "Hey Jude".
The event was hosted by Vernon Kay [video] and was attended by Pink [video].
The advert will be broadcast during Britain’s Got Talent on Saturday May 2 at 9pm on ITV1.
Related: Photos from the event on Flickr
Update: Extended full advert



















A passenger has landed a twin-engine King Air plane in Florida after its pilot died during the flight.
56-year-old Doug White had a pilot's license but had only recently resumed flying in a Cessna 172 and had no experience flying the larger and faster King Air.
He was guided by air traffic controllers and landed the plane which was carrying his family some 30 minutes after the pilot lost consciousness. 