Hundreds of electronic dance music fans took over The Pressroom in Phoenix on Saturday, September 14, for the Burial Grounds Arts & Music Festival. And they got down on the dance floor as EDM artists and DJs like Modestep, Infekt, Mvrda, Yøongblood, and Dark Mark dished out hard-hitting bass and trap sounds. Here's a look at the biggest party people we encountered at the event.