A waiata performed in two different languages at the same time radiated from the public gallery during yesterday's Whangārei District Council meeting.
The group of around 20 students, who have been on a 10-week New Zealand Sign Language course, gathered to say thank you to the council for funding it.
An interpreter helped them express their gratitude to councillors before the group sang and signed Te Aroha.
More than 30 students took part in the weekly classes which finish this week, which is also International Week of Deaf.
Kim Robinson helped organise the classes and said they were held in three locations: St Stephens Church in Onerahi, Northable and Te Kura o Ōtangarei School.