WWF's Earth Hour 2012; A human powered dance floor lit up the UK's flagship Earth Hour event at Somerset House. Inspirational dance act Flawless, stars of Britain's Got Talent and new film StreetDance 2 performed a twilight routine to launch earth hour. As local landmarks including the National Theatre, Big Ben and the Houses of Parliament went dark, street band the Luminites performed to Earth Hour supporters whilst WWF ambassador Tom Aitkens and his staff served sustainable canapés. Enjoy the film!