Hako is a term used to describe the tribal war dance of Easter Island. Nevertheless, it is used to use like dance of welcome and is sign of hospitality, but also as a method of intimidation before sports matches in the same way that the Haka is performed by the New Zealand national rugby union team.
Hako in sport
At present the hako is used before football and rugby union games by CF Rapa Nui of Easter Island
References
Hako (Rapa Nui) Wikipedia(Text) CC BY-SA