Ok so this trailer has been out for some time. As you can see from my DP, I am a big fan of Skrillex. I was unsurprised yet sad to see him using the Beats to mix. I can imagine as soon as Monster heard of this release, they jumped right in, handing out Studios to the DJs.
The product placement is pretty obvious, but the Beats aren't the only ones taking advantage: you can see a very obvious slow-mo shot of some Audio-Technica M50s (!), also what I think are some DT770 (!), the Sennheiser HD 202 show up a lot. Some Fanny Wangs which at first I thought were Beats (!!) and even what I think were some Fostex T50-RP (!!!). I think it's great that in here you can see real musicians using real headphones, so the Beats-are-used-by-professional-musicians myth can just curl up and die...