It's being described as "that awkward anthem moment" and it certainly didn't help Australia's men's hockey team at the Hockey World League.
The Kookaburras were waiting for the Australian anthem ahead of their opening Hockey World League match with Belgium in the Netherlands last week when the Maori verse of 'God Defend New Zealand' begins playing instead of 'Advance Australia Fair'.
Some of the players laughed and others shook their heads, while the commentator said: "I think you'll find that's the anthem for New Zealand. You have to see the funny side sometimes."
The anthem was stopped before the end of the Maori verse and a stadium announcer apologized for the gaffe. "This was the New Zealand national anthem," he says. "We will restart, our apologies guys." The Kookaburras went on to lose to Belgium 3-1.