The fourth single to be taken from Coldplay's Ghost Stories, 'Ink' gets a decidedly fancy and immersive video today. Released to coincide with Chris Martin and co's new concert film and live album, Ghost Stories Live 2014, you can get involved over at [link]coldplay.com/ink[/link]. Created by LA agency Blind and digital media company Interlude, it allows viewers to make real-time choices with 300 possible journeys available. So if you've a long lunch coming up with nothing to do...