Glastonbury is the UK's largest music festival. To apply for tickets everybody had to upload photos to their site, but demand was so great that 250,000 people didn't get a ticket in the end. When they got the news, we launched the Rainfest site. If J2O were H2O, we'd all love to rain dance, so we gave frustrated festival goers the chance to re-upload those pictures, create a dancer and join the world's biggest rain dance. Then they could invite their friends to join them and see them all dancing together, enjoying a festival of their very own.