Mark knight & d.ramirez v underworld - downpipe is a massively infectious groove that's gonna make you shake – "it's gonna make your hands shake" and builds excitement from start to end as the collaborative talents involved create an all-consuming journey for this, the first ever dance collaboration in the history of underworld, already crowned 'essential new tune' on radio1 by pete tong. an insanely infectious piece of music that has feeling and passion rushing through its veins, the combination of tech grooves and intense progressive-build nods heavily to the tight production skills of mark knight and d.ramirez and sees a stunning return to international dance floors for one of electronic music's most iconic voices – karl hyde, for this, the much anticipated and long overdue follow up to the 2007 anthem 'columbian soul'.