What is Blake Shelton hiding behind his head?

OK, congratulations Blake Shelton, I guess. 
You have successfully managed to beat some odds, and have convinced the editorial board of People magazine to name you the Sexiest Man Alive. Nice.
But as much as you want everyone to look at the that big bold title on the cover of that magazine, it can't distract us from the real thing on everyone's mind. Something that you have shown in picture after picture over the years. 
Well, now we demand to know.
What are you hiding behind your head