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

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

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

[Verse 2]
[Zayn]
So c-come on,
আপনি 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 আপনি light up my world like nobody else,
The way that আপনি flip your hair gets me overwhelmed,
But when আপনি smile at the ground it ain't hard to tell,
আপনি don't know,
Oh oh,
আপনি don't know you're beautiful,
If only আপনি saw what I can see,
You'll understand why I want আপনি so desperately,
Right now I'm looking at আপনি and I can't believe,
আপনি don't know,
Oh oh,
আপনি don't know you're beautiful,
Oh oh,
That's what makes আপনি beautiful

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

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

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

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

[Harry]
That's what makes আপনি beautiful

[From: link