Haka.

Haka are a variety of ceremonial dances in Māori culture. A performance art, haka are often performed by a group, with vigorous movements and stamping of the feet with rhythmically shouted accompaniment. Haka have been traditionally performed by both men and women for a variety of social functions within Māori culture. They are performed to welcome distinguished guests, or to acknowledge great achievements, occasions, or funerals.