She's not even fat, her body is just straight up proportioned wrong. She lacks any curves aside from her chest, which in turn makes the rest of her look bigger.
...At least she hides it well? The big band shirt/short-shorts combo was enough to not even have me question her weight until now.
She can't help a disproportionate body....at least she looked good on american idol
And i believe she keeps that big, poofy hair to help her body look more proportionate.