[Romanized:]

My girl
My world's changing

Tto dareun (bye, bye, bye)
Mideulsuga eobseo
(Tell me why, why, why)
Tteollineun neoui moksori
Don't try to say it
Byeonmyeongttawin deutgi sirheo

Hangsang neon urineun irwojil suga eopdago
Geureoneun niapeseo naega museun mareul hae
Gaseumi malhajanha
Museun mari deo pillyohae

Geurae nan michyeotda, michyeotda
Neoege nan michyeotda, michyeotda
Amuri ppajyeo naoryeo haedo
Neo hanabakke boiji anha
(Naege neon... maybe, maybe, maybe)
Haneuri jeonghan unmyeong
(Naege neon... baby, baby, baby)
Nae modeungeol neoege
(Naege neon... lady, lady, lady)
Nae yeope isseojwo
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

Not again...
Eotteoke (how, how, how)
Neon dareulkkahaesseo
(Dasi try, try, try)
Eotteoke sarangi byeonhae?
Charari tatae, neo animyeon andoeneun nar

Amuri mworahaedo eojjeol suga eobtjanha
Naege yokhandaedo dasi hanbeon malhalge
Sesange dan han saram
Geu sarami baro neorago...

Geurae nan michyeotda, michyeotda
Neoege nan michyeotda, michyeotda
Amuri ppajyeo naoryeo haedo
Neo hanabakke boiji anha
(Naege neon... maybe, maybe, maybe)
Haneuri jeonghan unmyeong
(Naege neon... baby, baby, baby)
Nae modeungeol neoege
(Naege neon... lady, lady, lady)
Nae yeope isseojwo
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

Nuneul gamado nae ape... (crazy)
Gaseumeul dadado nae ane... (crazy)
Eodilgado neon nae gieoge... (crazy)
Neon nae ane isseo

Geurae nan michyeotda, michyeotda
Neoege nan michyeotda, michyeotda
Amuri ppajyeo naoryeo haedo
Neo hanabakke boiji anha
(Naege neon... maybe, maybe, maybe)
Haneuri jeonghan unmyeong
(Naege neon... baby, baby, baby)
Nae modeungeol neoege
(Naege neon... lady, lady, lady)
Nae yeope isseojwo
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

Nan nege nege nege nege ppajingeol
Neol wonhae wonhae wonhae wonhae wonchyugeol
Nan michyeo michyeo michyeo michyeo michingeol
(Cuz I'm so crazy 4 u)

Nan nege nege nege nege ppajingeol
Neol wonhae wonhae wonhae wonhae wonchyugeol
Nan michyeo michyeo michyeo michyeo michingeol
(Cuz I'm so crazy 4 u)

Cuz I'm so crazy 4 u
Cuz I'm so crazy 4 u

[Korean:]

My girl
My world's changing

또 다른 (bye, bye, bye)
믿을수가 없어
(Tell me why, why, why)
떨리는 너의 목소리
Don't try to say it
변명따윈 듣기 싫어

항상 넌 우리는 이뤄질 수가 없다고
그러는 니앞에서 내가 무슨 말을 해
가슴이 말하잖아
무슨 말이 더 필요해

그래 난 미쳤다, 미쳤다
너에게 난 미쳤다, 미쳤다
아무리 빠져 나오려 해도
너 하나밖에 보이지 않아
(나에게 넌... maybe, maybe, maybe)
하늘이 정한 운명
(나에게 넌... baby, baby, baby)
내 모든걸 너에게
(나에게 넌... lady, lady, lady)
내 옆에 있어줘
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

Not again...
어떻게 (how, how, how)
넌 다를까했어
(다시 try, try, try)
어떻게 사랑이 변해?
차라리 탓해. 너 아니면 안되는 날...

아무리 뭐라해도 어쩔 수가 없잖아
나에게 욕한대도 다시 한번 말할게
세상에 단 한 사람
그 사람이 바로 너라고...

그래 난 미쳤다, 미쳤다
너에게 난 미쳤다, 미쳤다
아무리 빠져 나오려 해도
너 하나밖에 보이지 않아
(나에게 넌... maybe, maybe, maybe)
하늘이 정한 운명
(나에게 넌... baby, baby, baby)
내 모든걸 너에게
(나에게 넌... lady, lady, lady)
내 옆에 있어줘
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

눈을 감아도 내 앞에... (crazy)
가슴을 닫아도 내 안에... (crazy)
어딜가도 넌 내 기억에... (crazy)
넌 내 안에 있어

그래 난 미쳤다, 미쳤다
너에게 난 미쳤다, 미쳤다
아무리 빠져 나오려 해도
너 하나밖에 보이지 않아
(나에게 넌... maybe, maybe, maybe)
하늘이 정한 운명
(나에게 넌... baby, baby, baby)
내 모든걸 너에게
(나에게 넌... lady, lady, lady)
내 옆에 있어줘
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

난 네게 네게 네게 네게 빠진걸
널 원해 원해 원해 원해 원츄걸
난 미쳐 미쳐 미쳐 미쳐 미친걸
(Cuz I'm so crazy 4 u)

난 네게 네게 네게 네게 빠진걸
널 원해 원해 원해 원해 원츄걸
난 미쳐 미쳐 미쳐 미쳐 미친걸
(Cuz I'm so crazy 4 u)

Cuz I'm so crazy 4 u
Cuz I'm so crazy 4 u

[English translation:]

My girl
My world's changing

Another (bye, bye, bye)
And I can't believe
(Tell me why, why, why)
Your trembling voice
Don't try to say it
I don't want an excuse

You always say that we can't be together
So what can I say to you?
My heart is speaking for me
So what else do you need to hear?

Yes, I am crazy, crazy
I am crazy for you, crazy
I only see you
Even if I try to get away
(To me you are... maybe, maybe, maybe)
It's a fate that the heaven has set for us
(To me you are... baby, baby, baby)
I will risk everything for you
(To me you are... lady, lady, lady)
Please stay by my side
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

Not again...
How (how, how, how)
Did I think that you would be different
(Again try, try, try)
How can a love change?
Blame me, blame me who can't live without you...

I can't control my heart
I will say it again
That you are the one in the million
And you are the one for me...

Yes, I am crazy, crazy
I am crazy for you, crazy
I only see you
Even if I try to get away
(To me you are... maybe, maybe, maybe)
It's a fate that the heaven has set for us
(To me you are... baby, baby, baby)
I will risk everything for you
(To me you are... lady, lady, lady)
Please stay by my side
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

I can see you even if I close my eyes... (crazy)
You are inside me even if I close my heart... (crazy)
You are in my memory everywhere I go... (crazy)
You are inside me

Yes, I am crazy, crazy
I am crazy for you, crazy
I only see you
Even if I try to get away
(To me you are... maybe, maybe, maybe)
It's a fate that the heaven has set for us
(To me you are... baby, baby, baby)
I will risk everything for you
(To me you are... lady, lady, lady)
Please stay by my side
(Crazy, crazy, crazy) oh baby
Cuz I'm so crazy 4 u

I am into you, into you, into you
I want you, want you, want you girl
I am crazy for you, crazy for you, crazy for you
(Cuz I'm so crazy 4 u)

I am into you, into you, into you
I want you, want you, want you girl
I am crazy for you, crazy for you, crazy for you
(Cuz I'm so crazy 4 u)

Cuz I'm so crazy 4 u
Cuz I'm so crazy 4 u