 That's what makes you beautiful. 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. 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.