: the teachers are shown opening a box, the contents of which remain a secret.
"We wanted to capture some of the mystery of Christmas and we also thought it would be a good way to drum up interest and get the community engaged, so there is a #WhatsInTheBox? hashtag," Mr Parmiter said.
All proceeds from the single will go towards building a school in Kenya, a project that is being led by local York business WebCertain. The two-year scheme, overseen by the charity Build Africa, will create a new building for the Mbombo Primary School in the East African country's rural Gilgil region.
Abi Betts, a philanthropy executive at the Kent-based charity, said the money raised by the single would help to renovate two classrooms and build a new nursery.
"The funds will also help to support the livelihoods of the parents by developing small savings and loans in the community. By supporting the parents, it means they will be more likely to send their children to school," Ms Betts said. "We have hundreds of schools such as this across East Africa and it's very important to us that we have people raising money like this."
The teachers' idea for the single was supported by the Association for Citizenship Teaching, the subject body for citizenship, as it showed a willingness to volunteer and engage with the community. But the organisation said the pair could have gone further by involving their pupils in the process and linking it to the citizenship curriculum.
"Had they engaged their students in a series of lessons where they showed the concerns and differences in formal education around the world and in that part of Africa, and then linked it to recording a song to raise money for a school, their worthy cause may have been even more powerful," a spokesman said.