this man is a mongolian overtone singer. this incredible and distinctive vocal performance name's humaí.
it is believed the art of overtone singing has originated from mongolia in today's khovd and govi-altai region. it's a tipe of singing in which the singer manipulate the resonances to produce a melody. harmony of up to 4 layers can be produced at the same time. so amazind :o
the instrument you can see this video is called morin khuur.