Mashing together the sounds of dubstep, grime, house, and other flavors of underground dance, production duo the Count & Sinden conquered U.K. dancefloors in 2008 with their infectious single "Beeper." Both triple threats in their own right -- producing, DJing, and remixing -- London residents Joshua "The Count of Monte Cristal" Harvey and Graeme Sinden came together in 2006 for the electro track "Tamborzuda." A year later they released the more house sounding cut "Everybody Rocking," but in 2008 they fully embraced grime, hooked up with Chicago rapper Kid Sister, and released...