Video: A Christmas song which will make you want to grant these children's wish If there was a Government petition to outlaw Do They Know It's Christmas, I'd be the first to sign up. But this is one festive song for two good causes that bucks the schmaltzy trend. From the moment the little boy in the opening sequence flashes his nervous smile, you'll be hooked. My favourite moment: the grinning kid rocking wildly to this catchy melody at 2:05. By the time the wide-eyed boy with clasped palms wishes us "Happy Christmas," I was beaming. The youngsters, aged between five and 11, have already reached number five on the iTunes children's chart, which is dominated by commercial songs targeted at children. So share the video, buy the song and help the 600 children of Millfields Community School in Hackney, London, get their new playground (while boosting UNICEF's Sing for Syria campaign, too). Send us your uplifting, life-enhancing videos to goodtoshare@telegraph.co.uk