Here is the official statement of Obscene Extreme Festival:
The death/grind grinder from Greece called HEAD CLEANER produces a high-quality and technically complex mosh similar to the production of the giants of Napalm Death from the last decade. HEAD CLEANER is not a bunch of newcomers though but experienced veterans of Greek death/grind scene, who have released a vast number of quality recordings.
The latest one being a split LP with Progress of Inhumanity. This squad will certainly be welcome as another genre stalwart at the next year Obscene Extreme!!!