Cameron ya rubuta Titanic yayin sauraron aikin mawaƙa na sabuwar zamani na Irish Enya. Ya ba Enya damar yin waƙa don fim ɗin, amma ta ƙi. Cameron a maimakon haka ya zaɓi James Horner don yin waƙar fim ɗin. Su biyun sun rabu da hanyoyi bayan ƙwarewar aiki a kan Aliens, amma Titanic ya haɗu da haɗin gwiwa mai nasara wanda ya kasance har zuwa mutuwar Horner. Don muryoyin da aka ji a cikin fim ɗin, wanda Earle Hitchner na The Wall Street Journal ya bayyana a matsayin "mai ban sha'awa", Horner ya zaɓi mawaƙa ɗan ƙasar Norway Sissel Kyrkjebø, wanda aka fi sani da "Sissel". Horner ya san Sissel daga kundin waƙoƙin Innerst i sjelen, kuma yana son yadda ta rera "Eg him i veitik" ("Na san a cikin sama akwai Castle").
kundin wakokinta na Innerst i sjelen