New Zealand’s oldest flashmob performed on Queen Street today to a surprised and elated crowd.
The Lifemark Flashmob is all about drawing attention to the elderly's growing need for purpose-built housing.
Watch the story behind the mob from Campbell Live
It is sponsored by the Lifemark Seal of Approval, which is awarded to homes built to specific design standards.
The group is made up of senior citizens from Waiheke Island who have been practising the dance for some time.
They are hoping their performance will, like other flash mob events, go viral on the internet – although the concept of 'going viral' might be a bit of stretch for some nonagenarians.
Watch the video to see their public performance