The Haka is a very traditional dance form of the Maori of New Zealand. It's posture dance performed by a group, with vigorous movements and stamping of the feet with rhythmically shouted accompaniments. It involves fierce facial expressions and grimaces; poking out o the tongue, eye bulging, grunts and cries, and the waving of weapons.. The use of a haka by the All Blacks rugby union team has made the dance very popular in the world. However, some are performed by women, others by mixed groups, and some simple haka are performed by children. The most well known haka is "Ka Mate".