I admire this look. Honestly, as someone who has washed and blow-dried her hair every single day of her life for the last say, twenty years, I admire how much time this new 'do will save her. I desire to have short short hair, but I could never pull this off.
Now, given that Britney Spears shaved her head in a random act of insanity, the look has baggage attached to it. Still, there are women--Demi Moore, Natalie Portman, Neve' Campbell-- who can go shorter than the rest and still look beautiful.
So, whether or not the rest of the world likes Mena's buzz cut, I have to appreciate that she is going against the extra-long hair Hollywood drones and she's still cuter than most. Now how great is that? Shave your head and still be one of the cute ones. She kind of reminds me of Jessica Simpson in this photo, except I'm guessing there's a book in that bag.