Look, you know MIley is going to do terrible things to groins, foam fingers and melody. But she or someone in her camp has great taste in pop music (no, really). The opening acts on the Bangerz tour are wonderful. Swedish duo Icona Pop elevate rote high-school dancefloor material through sheer enthusiasm and charm. The moodier Sky Ferreira imagines what a pop ingenue would sound like if the Jesus and Mary Chain played svengali.