Anyone know how tall Kara Dioguardi is? comparing her with paula.... jw?

I've heard paula is like 5 feet even, and she and kara were standing up tonight and i was just wondering what the height difference was. Kara looks at least 3 or 4 inches taller than her, but Kara by herself looks about 5"5 or 6, but if paula really is just 5, thats not true ahahaha i dont know, things like this interest me.