Griffiths first recorded small groups of pupils and then invited more, telling them to affect a Cockney accent and shout rather than sing. He multitracked the voices, making the groups sound larger, before sending his recordings back to Los Angeles. The result delighted Waters, and the song was released as a single, becoming a Christmas number one. There was some controversy when the British press reported that the children had not been paid for their efforts; they were eventually given copies of the album, and the school received a £1,000 donation (£ in contemporary value).