The dance music collaboration is not a new phenomenon. In fact, we've seen artists working with dance music producers for remixes for over 20 years. With EDM acts like Avicii, Steve Aoki, and others calling on artists from the rock world over the last few years, we realized that the unions between dance music and rock are pretty interesting. And while some of these collaborations make sense, others just seem way out of leftfield. Be it the artist chosen or the end result, here are the 10 most out of the ordinary collabs between rock artists and EDM producers.