[Intro: Joy]
Sunny side up!
Sunny side up, up!
Sunny side up!
Oh, yeah, oh, yeah

[Verse 1: Wendy, Irene, Joy, Yeri]
A geu nunbicheun jeori chiwo dullae
Eodiseo geuri eoreuncheoreom gullae
Jom ondochaga isseo uri saien
Geu saie I was down, down, down
Nan geobi na (na) jakkuman nan geobi na (na), oh
Da tabeorilkka (da) da beorilkka (da)
Soljiki, soljiki holliji nan yoksimi na (Oh, no)
But mwonga jom uri daun, daun, daun

[Pre-Chorus: Seulgi, Wendy]
Nal boneun geu nun
Nan jakkuman tto ibi ta (ibi ta)
Gamanisseodo neol nochilkka nan aega ta
(Woo-hoo, ooh-la-la)

[Chorus: All, Seulgi, Yeri, Joy]
Sunny side up!
Malcheoreom swipjin antae
Seodureudan kkaejil geol
(Woo-hoo, ooh-la-la)
Jaemieopdeon maeiri ijen Sunday
Imi neoneun nae taeyangin geol
Jamkkanman, jamkkanman, tto jakkuman
Nae mamman, nae mamman da tadeureoga
Sunny side up!
Mamcheoreom swipgen an dwae
Uril kkaetteurigin sileun geol
(Woo-hoo, ooh-la-la)

[Verse 2: Wendy, Seulgi, Yeri]
Neon neomu ppalla, I need time to catch up
An oleullae ne geupan mamui virus (Uh)
Munjega isseo uri saenggak chaie (e)
Geu chaie (e), I was down, down, down (Down, down)

[Pre-Chorus: Joy, Irene, Seulgi]
Nal boneun geu nun
Nan jakkuman tto ibi ta (Oh, yeah, uh-uh)
Gamanisseodo neon tteugeowo nan aega ta
(Woo-hoo, ooh-la-la)

[Chorus: All, Joy, Wendy, Yeri, *Irene*]
Sunny side up!
Malcheoreom swipjin antae
Seodureudan kkaejil geol
(Woo-hoo, ooh-la-la)
Jaemieopdeon maeiri ijen Sunday
Imi neoneun nae taeyangin geol (Sunny side up)
Jamkkanman, jamkkanman (jakkuman) tto jakkuman
Nae mamman, nae mamman da tadeureoga
Sunny side up!
Mamcheoreom swipgen an dwae
*Uril kkaetteurigin sileun geol* (Sunny side up, sunny)

[Bridge: Seulgi, Irene, Joy, Wendy]
Jalmothaetdan, game over iji (iji)
Idaerodo joa nan ajik (ajik)
Nal heundeulji ma (Oh)
Da kkaejilji molla (Oh)
Don't make my mind, all scrambled up

[Refrain: Yeri, Seulgi, Wendy]
Sunny side up!
Sunny side up, up! (Oh)
Sunny side up! (Ooh)
Oh, yeah, oh, yeah (Oh, yeah, yeah)

[Chorus: All, Seulgi, Joy, Wendy]
Sunny side up!
Malcheoreom swipjin antae
Seodureudan kkaejil geol
(Woo-hoo, ooh-la-la)
Jaemieopdeon maeiri ijen Sunday
Imi neoneun nae taeyangin geol
Jamkkanman, jamkkanman (Oh) kkuk chamatdeon
Nae mam da nae mam da da teotteurilkka
Sunny side up!
Jom gidarimyeon eottae
Uriui taeyangi got tteul geoya

[Outro: Irene]
Sunny side up!