A 300-strong ‘flashmob’ has been singing and dancing for arrivals at Heathrow’s Terminal 5 today (Wednesday 27).

The event, organised by agency Saatchi and Saatchi for phone network T-Mobile, is being filmed on hidden cameras and will be screened on more than 80 channels at 10.15pm this Friday.

T-Mobile Heathrow T5 Welcome Back from World Television on Vimeo.