[Verse 1: Liam]

You're insecure, don't know what for

You're turnin' heads when you walk through the door

Don't need makeup to cover up (Huh)

Bein' the way that you are is enough

[Pre-Chorus: Harry]

Everyone else in the room can see it

Everyone else but you

[Chorus: All & Harry]

Baby, you light up my world like nobody else

The way that you flip your hair gets me overwhelmed

But when you smile at the ground, it ain't hard to tell

You don't know, oh-oh, you don't know you're beautiful

If only you saw what I can see

You'll understand why I want you so desperately

Right now I'm looking at you and I can't believe

You don't know, oh-oh, you don't know you're beautiful, oh-oh

That's what makes you beautiful

[Verse 2: Zayn]

So c-come on, you 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 eyes

[Pre-Chorus: Harry]

Everyone else in the room can see it

Everyone else but you

[Chorus: All & Harry]

Baby, you light up my world like nobody else ('Body else)

The way that you flip your hair gets me overwhelmed

But when you smile at the ground, it ain't hard to tell

You don't know, oh-oh, you don't know you're beautiful (Oh)

If only you saw what I can see

You'll understand why I want you so desperately

Right now I'm looking at you and I can't believe

You don't know, oh-oh, you don't know you're beautiful, oh-oh

That's what makes you beautiful

[Bridge: All]

Na, na-na-na, na-na-na, na, na

Na, na-na-na, na-na

Na, na-na-na, na-na-na, na, na

Na, na-na-na, na-na

[Breakdown: Harry]

Baby, you light up my world like nobody else

The way that you flip your hair gets me overwhelmed

But when you smile at the ground, it ain't hard to tell

(You don't know, oh-oh) You don't know you're beautiful

[Chorus: All, Harry & Zayn]

Baby, you light up my world like nobody else (Light up my world like nobody else)

The way that you flip your hair (C'mon) gets me overwhelmed

But when you smile at the ground (Smile at the ground), it ain't hard to tell

You don't know, oh-oh, you don't know you're beautiful (Oh, woah)

If only you saw what I can see

You'll understand why I want you so desperately (Desperately)

Right now I'm looking at you and I can't believe

You don't know (Don't know), oh-oh, you don't know you're beautiful, oh-oh

You don't know you're beautiful, oh-oh

That's what makes you beautiful

[Written By Savan Kotecha]