 Blackwell introduced Norman to Byron Lee and the Dragonaires who performed the Jamaican music in the film.Lee and his band including guitarist Ernest Ranglin and trombonist Carlos Malcolm recorded the Jamaican parts of the score in Kingston's Federal Studios, with Norman himself and his then wife Diana Coupland who accompanied Norman on the airplane containing the film's crew to Jamaica, recording vocals along with Byron Lee and the Dragonaires who appear in the film performing "Jump Up".The song "Under the Mango Tree" was performed by an uncredited Diana Coupland, backed by Ernest Ranglin on guitar.