I don't really think it's fair to attribute all of her success to being white. She does have some sort of talent and seems to have a genuine passion for music. But her main selling point is relatability. She doesn't look like a supermodel, she's not a sexpot and her music designed to appeal to any and every demographic; most of her songs can be played anywhere from the Olympic games to a romantic comedy movie.
With that said, that alb' is fucking snore and I'm tired of hearing about it.