Does Britney Keep Shaving Her Head?

I don't have hair anymore and so maybe I forgot some things about how long it takes to grow hair, but doesn't it seem like Britney should have some hair by now? She and Alli were at a wig shop again the other day trying to find new wigs for Britney. I know Britney likes to play dress up and maybe each wig is a personality for her, but she must have some real hair there somewhere. Does she keep shaving it every night in some odd religious ceremony or has it just simply not wanted to grow back or grown in grey? No one asks where the hell is her hair? Now if that stringy ass mess under that hat is her real hair, then I know why she keeps buying wigs, but if that stringy ass hair is a wig, then think about how bad her real hair must be.