New Zealand's national sports teams perform a pre-game dance called a haka. It's a traditional dance from the country's native Maori people. A haka is used as an intimidating war dance, but is also performed at weddings, funerals, to welcome distinguished guests or to recognize achievements. The New Zealand rugby team has been performing a pre-game haka since the early 1900's and the basketball team has recently added it to their pre-game ritual. Yesterday, the Tall Blacks got a stunned reaction from James Harden and Team USA before their FIBA World Cup showdown.