Brother Steve Todd sent this in.
We watched natives do this at the Polynesian Cultural Center in Hawaii. Pretty cool.
The Haka (plural is the same as singular: haka) is a traditional ancestral war cry, dance or challenge from the Māori people of New Zealand. It is a posture dance performed by a group, with vigorous movements and stamping of the feet with rhythmically shouted accompaniment. The New Zealand rugby team‘s practice of performing a haka before their matches has made the dance more widely known around the world. — Wikipedia
More here: http://en.wikipedia.org/wiki/Haka
