Hakka Americans
Hakka Americans (客家美國人 or 客裔美國人), also called American Hakka, are Han people in the United States of Hakka origin, mostly from present-day Guangdong and Fujian, China, and Taiwan. Many Hakka Americans have connections to Hakka diaspora in Jamaica, the Caribbean, South East Asia, Latin America, and South America. The Han characters for Hakka (客家) literally mean "guest families". Unlike other Han ethnic groups, the Hakkas are not named after a geographical region, e.g. a province, county or city. The Hakkas usually identify with people who speak the Hakka language or share at least some Hakka ancestry. The earliest Hakka immigrants to what is now the United States mostly went to Hawaii, starting when the Kingdom of Hawaii was an independent sovereign state. After the lifting of the Chinese Exclusion Act by the passage of the Magnuson Act in 1943, the Hakka began to come to the US from Taiwan and to a lesser extent Hong Kong, Southeast Asia, Jamaica and the Caribbean.
Haka performed by non-New Zealand sports teams
Trinity High School of Euless, Texas first performed the "Ka Mate" haka for fans at the beginning of the 2005 season, copying from the New Zealand's All Blacks rugby team. Several famous All Blacks such as Jonah Lomu, Doug Howlett, and Pita Alatini have been of Tongan birth or descent, and Tongan players have helped transform Trinity High School into a Texas football powerhouse. The Euless area is home to an estimated 4,000 people of Tongan descent. 
"We do the haka to ignite the breath of competition. It means that I've got your back and you've got mine," said Mr. Kautai, a player who stands and weighs 280 pounds (127 kg).