Britain's Got Talent judge Alesha Dixon has teamed up with children's charity Children United to launch a charity single, We are the Children United, which features the singer and the voices of thousands of children from across the globe.

The charity, which was set up by founding partner organisations First News, Achievement for All, and Skoolbo, and in partnership with Save the Children and Microsoft Skype, is the world's first online platform which will bring children together from across the globe to discuss the issues that matter to them. Dixon said 'Getting involved with Children United was a no-brainer! I just thought the whole idea was fantastic. I love the idea of children coming together from all around the world - having a voice and being heard. I think it's really important'.