I.O.I – Knock Knock (똑 똑 똑)

(Ttok ttok ttok ttok, ttok ttok ttok ttok)

[Somi] Changgareul dudeurin bombicheoreom (Ttok ttok ttok)
Mameul jeoksigo neoro muldeuryeo
Jigeum utgo itneun neoreul bomyeon
[Nayoung] Jangnangi gadeukhan ni maltudo (Ttok ttok ttok)
Nuneul gamado jakku saenggakna
Dandanhi ppajin geot gata

[Mina] Mwol geurido bappa dap jom hae jwobwa
Niga bogo sipdan marya
[Pinky] Nae maeumcheoreom ttak an doeneun gabwa
Jojeori an doendan marya

[Chungha] Jamgyeore ni ireum bulleo
Could I be in love nan
Dandanhi ppajin geot gata

[Sejeong] Neoneun ttok ttok ttok nal dudeurigo
Tto tto tto mam heundeullyeo maeil bam
Gidarida jichyeo nan jami deureo
[Yeunjung] Ttok ttok ttok nal dudeurigo
Talk Talk Talk nae gwitgae saranghandago
Saljjak malhaejumyeon an doegetni

[Sohye] Eolmana eolmana gidaryeoya hani  nan
Oh Tell Me Boy
[Chaeyeon] Cheoncheonhi cheoncheonhi dagawa 
Meomchujima yeogi itneun nal
[Yoojung] Jakkuman jakkuman nae mameul siheomhajima
Ooh ijen saranghandago
Saljjak malhaejumyeon an doegetni

[Doyeon] Pogeunhage buneun bombarame (Ttok ttok ttok)
Nareul sitgoseo nege dallyeoga gyeote itgo sipeungeol
[Sejeong] Kkotnipi pieonaneun geotcheoreom (Ttok ttok ttok)
Dachin nae mame niga keojyeoga
Dandanhi ppajin geot gata

[Mina] Mwol geurido bappa dap jom hae jwobwa
Niga bogo sipdan marya
[Pinky] Nae maeumcheoreom ttak an doeneun gabwa
Jojeori an doendan marya

[Chungha] Jamgyeore ni ireum bulleo
Could I be in love nan
Dandanhi ppajin geot gata

[Sejeong] Neoneun ttok ttok ttok nal dudeurigo
Tto tto tto mam heundeullyeo maeil bam
Gidarida jichyeo nan jami deureo
[Yeunjung] Ttok ttok ttok nal dudeurigo
Talk Talk Talk nae gwitgae saranghandago
Saljjak malhaejumyeon an doegetni

[Somi] You’re knocking at my heart
Jogeumeun seolleeodo
[Yoojung] I wanna show it all neomu molla neon
[Nayoung] Hanbal deo jogeumman deo
Nal hyanghae neodo yeoreojwo Oh
[Yeunjung] You got the key don’t stop
Mangseoriji malgo kkok naege dagawa Come On

[Sejeong] Neoneun ttok ttok ttok nal dudeurigo
Tto tto tto mam heundeullyeo maeil bam
Gidarida jichyeo nan jami deureo
[Yeunjung] Ttok ttok ttok nal dudeurigo
Talk Talk Talk nae gwitgae saranghandago
Saljjak malhaejumyeon an doegetni

[Sohye] Eolmana eolmana gidaryeoya hani  nan
Oh Tell Me Boy
[Chaeyeon] Cheoncheonhi cheoncheonhi dagawa 
Meomchujima yeogi itneun nal
[Yoojung] Jakkuman jakkuman nae mameul siheomhajima
Ooh ijen saranghandago
Saljjak malhaejumyeon an doegetni