[Verse 1]
[Liam]
You're insecure,
Don't know what for,
You're turning heads when आप walk through the door,
Don't need make-up,
To cover up,
Being the way that आप are is enough,

[Bridge]
[Harry]
Everyone else in the room can see it,
Everyone else but you,

[Chorus]
[All]
Baby आप light up my world like nobody else,
The way that आप flip your hair gets me overwhelmed,
But when आप smile at the ground it ain't hard to tell,
आप don't know,
Oh oh,
आप don't know you're beautiful,
If only आप saw what I can see,
You'll understand why I want आप so desperately,
Right now I'm looking at आप and I can't believe,
आप don't know,
Oh oh,
आप don't know you're beautiful,
Oh oh,
That's what makes आप beautiful

[Verse 2]
[Zayn]
So c-come on,
आप got it wrong,
To prove I'm right,
I put it in a song,
I don't know why,
You're being shy,
And turn away when I look into your eye eye eyes,

[Bridge]
[Harry]
Everyone else in the room can see it,
Everyone else but you,

[Chorus]
[All]
Baby आप light up my world like nobody else,
The way that आप flip your hair gets me overwhelmed,
But when आप smile at the ground it ain't hard to tell,
आप don't know,
Oh oh,
आप don't know you're beautiful,
If only आप saw what I can see,
You'll understand why I want आप so desperately,
Right now I'm looking at आप and I can't believe,
आप don't know,
Oh oh,
आप don't know you're beautiful,
Oh oh,
That's what makes आप beautiful

Na Na Na Na Na Na Na Na Na Na
Na Na Na Na Na Na [x2]

[Middle 8]
[Harry]
Baby आप light up my world like nobody else,
The way that आप flip your hair gets me overwhelmed,
But when आप smile at the ground it ain't hard to tell,

[All]
आप don't know,
Oh oh,
आप don't know you're beautiful,

[Chorus]
[All]
Baby आप light up my world like nobody else,
The way that आप flip your hair gets me overwhelmed,
But when आप smile at the ground it ain't hard to tell,
आप don't know,
Oh oh,
आप don't know you're beautiful ([Harry:] Oh),
If only आप saw what I can see,
You'll understand why I want आप so desperately ([Harry] desperately),
Right now I'm looking at आप and I can't believe,
आप don't know,
Oh oh,
आप don't know you're beautiful,
Oh oh,
आप don't know you're beautiful ([Harry] beautiful),
Oh oh,

[Harry]
That's what makes आप beautiful

[From: link