Taxpayers paid close to a million dollars for a campaign that had Sir Rod Stewart record a video version of his 1975 hit Sailing that was played at America's Cup fan zones.
But Tourism New Zealand (TNZ) said the Rock the Dock event, aimed at using the America's Cup as a way to market New Zealand overseas, cost $918,000 but would not say what portion went to the British pop star.
The agency's director of marketing Tony Rogers said the event was part of a campaign to promote New Zealand to key international markets "in preparation for borders reopening in the future".
"To maximise the impact to the New Zealand economy of hosting the America's Cup, businesses and government agencies are running a programme of events and activities to lift New Zealand's profile internationally," Rogers said in response to an Official Information Act request.