EDM means electronic dance music, which doesn’t really say anything about the genre at all. After it began to make big commercial waves in 2010, the buzz term became shorthand for drop-filled, high-intensity house smeared in dayglo paint. It’s made millionaires of its stars, which include Calvin Harris, Tiesto, Avicii, Zedd, Steve Aoki and more. EDM has seen such a huge surge in popularity in the last few years that Zac Efron’s starred in a film about it (We Are Your Friends) and in a leaked Sony email from 2013, executives at the film company were shown to be considering how to target US millennials with an EDM soundtrack for The Amazing Spiderman 2. Its biggest newcomers, self-described ‘frat bros’ The Chainsmokers, have shown its popularity is anything but fading, with their recent single ‘Closer’, alt-pop star Halsey, sitting at Number One in the US for the last nine weeks.