This isn't really my thing, and I don't even think it's very cool, but they're a local DJ unit from Barcelona. I was amused by the photograph of the three of them in their sunglasses and decided to go (much like buying an album just for its cover), but I was disappointed to find that they were mediocre, even from a DJ-ing perspective. Then again, I guess it was interesting to see such a large percentage of the audience wearing shades.