ɡɪtˈɑːɹɹɪst ðɪ ˈɛdʒ sˈɛd ðˈæt "pˈiːs ˌɔn ˈɜːθ" kˈeɪm təɡˌɛðɚ ɹˈæðɚ kwˈɪkli, æz hiː hæd pɹˈiːɹˈɪʔn̩ ðə mjˈuːzɪk ænd ðˈɛn bˈoʊnoʊ dɪvˈɛləpt hɪz vˈoʊkəl pˈɑːɹt æt ðə mˈaɪkɹəfˌoʊn.
Guitarist the Edge said that "Peace on Earth" came together rather quickly, as he had pre-written the music and then Bono developed his vocal part at the microphone.