I too have been trying to figure out her hair for the past year. I love her hair in the throw-back photo of her at last year's Governor's Ball. Her hair has been this weird helmet in the past 8 months. That last photo above at Billy Graham's viewing confirms my suspicions.Yeah weird. Maybe she's trying to cover a receding hair line or something?
Weave. Total weave.
Look at how full her hair is in that last photo. Sorry folks, her hair has never been that full. Maybe her hair's been falling out because of the stress.