Irene, Seulgi, Wendy, Joy, Yeri
Hey Yo
Knock knock
geogi nugu eoptnayo (Ye Oh~ yeah)
Knock knock (Yeah~)
yeogin eodiingayo
eoneu haessal joheun ohu nareunhi neomgin
chaekjang sok yeppeugo isanghan geurim
mundeuk soni meomchwojyeosseoyo
nal bogo sallangsallang ppalli oraora sonjithae
nado moreuge jeomjeom
ppallyeo deureogage dwaesseoyo
isanghan naraui ipguneun heom haetjyo
sumeul heoltteogimyeo jeoneun dochakhaetjyo
binggeulbinggeul kkotdeul chumchuneun
udangtangtang tokkideul ssauneun
Huff n Puff sumi heokheok ttwieobwado
naega jagaseo poljjak ttwieo namureul tago
sesangeul dulleobwatjyo
Huff n Puff kkum sok gateun singiru yeojeonhi
meoreoseo ttambangureul banjjagimyeo
jeoneun dallyeotdeon geojyo
Knock knock
geogi nugu eoptnayo
Knock knock
yeogin eodiingayo
(Are You Ready?) (Oh)
i geurimui dwitjangkkaji
jeoneun dallyeoga boatjyo
borasaek haneulgwa
Na na na bunhongui sinaetmul
salgeumsalgeum jinayo monseuteo
Oh my god geuga nuneul tteobeoryeo
udangtangtang eolleun domangchyeo domangchyeo
waenji na aldeon got gata
chinhan chingudeurieotdeon geot gata
Na na na na eodi sumeoitni
Huff n Puff sumi heokheok ttwieobwado
naega jagaseo poljjak ttwieo namureul tago
sesangeul dulleobwatjyo
Huff n Puff kkum sok gateun singiru yeojeonhi
meoreoseo ttambangureul banjjagimyeo
jeoneun dallyeotdeon geojyo
I don't know why
wae modu sarajyeosseo?
nae gieokdeureun geudaeroinde
I don't know why
ja nolliji mayo
Na na na na eodideul sumeotni Hey
Huff n Puff sumi heokheok ttwieobwado (Ye)
naega jagaseo poljjak ttwieo namureul tago (Na Na~)
sesangeul dulleobwatjyo (Oh whoa~)
Huff n Puff kkum sok gateun singiru yeojeonhi (Yeah ye eh oh~)
meoreoseo ttambangureul banjjagimyeo (ttambangureul Yeah)
jeoneun dallyeotdeon geojyo
Knock knock (Oh Knock knock Baby)
geogi nugu eoptnayo (geogi nugu eoptnayo)
Knock knock
yeogin eodiingayo
(Knock knock Baby
Knock knock knock knock yeah~
Knock knock Baby
Yeah ye yeah~ Hey~)
(Ha ha ha)
