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

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

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

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

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

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

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

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

[Harry]
That's what makes Du beautiful

[From: link