KT Tunstall switched OFF the Christmas Lights at Westfield London to launch the countdown to WWF’s Earth Hour, which will take place on March 31st 2012.

The globally renowned singer also performed an intimate performance for fans gathered at Westfield London in Shepherd’s Bush.

KT’s sparkling performance also marked the launch of WWF’s nationwide competition to find one lucky community which will be given the honour of leading the Earth Hour switch off in the UK. The winning community will win a £1,000 grant to make sure that their ‘switched off’ event goes with a bang.

WWF’s Earth Hour is a simple idea that’s become a global phenomenon, with hundreds of millions of people turning off their lights to show they want to create a brighter future for the planet. Spanning a record 135 countries in 2011, this year’s Earth Hour is set to be even bigger.

WWF’s Earth Hour started in 2007 in Sydney, Australia when 2.2 million individuals and more than 2,000 businesses joined in. Last year hundreds of millions of people and landmarks from Big Ben and Buckingham Palace in London to the India Gate in New Delhi, and even as far as The Sydney Opera House, took part.

Westfield has supported WWF’s Earth Hour globally since it began in 2007 as one of the first organisations to sign up. In 2011, Westfield London became home to Rooftop Rainforest with Sky, bringing a taste of the Amazon rainforest to the city.

KT Tunstall, ambassador of WWF’s Earth Hour, said:

“I’m delighted to have switched off the festive lights at Westfield London today to launch WWF’s Earth Hour. It’s such a simple, powerful campaign and it’s a great feeling to be joining many millions of others around the world who care and are taking action. I really hope that people feel inspired to sign up and switch off their lights on 31 March.”

“I’ve always cared deeply about the environment and try my best to limit the impact my life and work has on the planet. It’s not easy but there are simple steps and commitments you can make and WWF’s Earth Hour is a great chance to tell others what you are doing and get them to join you.”