Lyrics:

There were places we would go at midnight
There were secrets that nobody else would know (Uoo)
There's a reason but I don't know why
I know don't why, I don't know why
I thought they all belonged to me...

[CHORUS]
Who's that girl?
Where's she from?
No, she can't be the one
That you want
That has stolen my world
It's not real, it's not right
It's my day, it's my night
By the way, who's that girl
Living my life
Oh no, livin' my life

Seems like everything's the same around me (around me)
Then I look again and everything has changed
I'm not dreaming, so I don't know why?
I don't know why, I don't know why?
She's everywhere I wanna be...

Who's that girl?
Where's she from?
No, she can't be the one
That you want
That has stolen my world
It's not real, it's not right
It's my day, it's my night
By the way, who's that girl
Living my life...

I'm the one who made you laugh
Who made you feel
And made you sad
I'm not sorry
For what we did, and who we were
I'm not sorry, I'm not her!

Who's that girl?
Where's she from?
No, she can't be the one
That you want
That has stolen my world
It's not real, it's not right
It's not day, it's my night
By the way, who's that girl
Livin' my life
Oh no, living my life