Turn on the radio in any car, candy store or sex-toy emporium, and you'll inevitably hear a song produced by David Guetta, Diplo or Calvin Harris. Once, these were truly underground artists with prototypical cult followings across glitter- and glowstick-strewn dance floors the world over, from Ibiza to the Berghain in Germany. But this year there's been a serious sonic shift of underground dance music bleeding back into pop. Yes, Lady Gaga may have gone Springsteen in 2011, but everyone else went... More >>>