In rehab...looking for lost hair

So, I failed to mention in my last Britney Spears post that prior to her buzz cut, she checked herself into rehab, apparently she only stayed for one day, however.
They probably wouldn't give her rights to a hair-trimmer.
Anyway, according to the Associated Press she went back into rehab only a day after, but she again, left before finishing a full day, still bald.
She realized rehabs don't grow back hair.
Here's a link if you want to get in on some of this hair, although you may get the color of her roots here:
Britney's hair

How funny would it be if she were the new spokeswoman for Rogaine?