Liam:
You're insecure
Don't know what for
You're turning heads when you walk through the door
Don't need make up
To cover up
Being the way that you are is enough

Harry:
Everyone else in the room can see it
Everyone else but you-ou-ou

Chorus:
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 aint 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!

Zayn:
So c-come on
You got it wrong
To prove I'm right I put it in a so-o-ong
I don't why
You're being shy
And turn away when I look into your eye eye eyes

Harry:
Everyone else in the room can see it
Everyone else but you

Chorus:
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 aint 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

Bridge:
Nana (chant)

Harry:
Baby you light up my world like nobody else
The way that you flip your hair gets me overwhelmed
But you when smile at the ground it aint hard to tell
You don't know (oh oh)
You don't know you're beautiful!

Chorus:
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 aint 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)
You don't know you're beautiful!
(Oh oh)

Harry:
That's what makes you beautiful!