(Taeyeon) nuneul tteumyeon dalkomhan haessal
singgeureoun fruit hyang heureugo
mokaratte gadeuk dama
jageun teraseue anja
geudael tteo ollimyeon

(Jessica) nado mollae seumineun miso
joheun ilman saenggil geot gata
nugudo manjil su eomneun
nae haruui seolleimdeureul
neukkyeobojyo

(Seohyun) urikkiri miri heorak batjido anheun chae
mallanggeorineun sarangeul haedo doeneun geonji
(Sunny) hajiman mwo eottae mabeopcheoreom
nal geot gateun gibun sumgil su eobseo

(Jessica) Oh Day by day Day by day
nae maeumdo (Seohyun) ne mamcheoreom
(Jessica) sarangeuro chaewo neoheulge
(Sunny) keurimcheoreom pogeunhage
seororeul wihae barabwayo
(Taeyeon) hangsang joheun ilman saenggakhaeyo

(Tiffany) gakkeumssigeun datwotdeon iri
nae maeumeul apeuge haedo
geudae meotjyeotdeon moseumman
gieoge namgyeodundamyeon
haengbokhal su itjyo

(You) sagaksagak jinhan yeonpillo
nae ireumeul sseugo innayo
sareureu nogabeoril deut
nal barabodeon geu nunbicheul
tteoollyeoyo

(Sunny) urikkiri miri heorak batjido anheun chae
mallanggeorineun sarangeul haedo doeneun geonji
(Jessica) hajiman mwo eottae mabeopcheoreom
nal geot gateun gibun sumgil su eobseo

(Taeyeon) Oh Day by day Day by day
nae maeumdo (Seohyun) ne mamcheoreom
(Taeyeon) sarangeuro chaewo neoheulge
(Jessica) keurimcheoreom pogeunhage
seororeul wihae barabwayo
hangsang joheun ilman saenggakhaeyo

(Taeyeon) Day by day Day by day
nae maeumdo ne mamcheoreom
sarangeuro chaewo neoheulge
(Tiffany) keurimcheoreom (Seohyun) pogeunhage
(Jessica) seororeul wihae (Sunny) barabwayo
(You) hangsang joheun (Taeyeon) ilman saenggakhaeyo