Stars like Saweetie and Demi Lovato are shaving their head for fun.
Jada Pinkett Smith -- who's always rocked short hair -- has no choice.
The oversharer from a family of oversharers has shaved down to the scalp.
Jada has the autoimmune disorder alopecia, which causes hair loss and balding.
[Instagram post not found]“So it just showed up like that and this is going to be a little bit more difficult for me to hide,” she said. “So I thought I’d just share it so y’all are not asking any questions."