Jessie J to gain weight and shave head?

Jessie J to gain weight and shave head?
Jessie J a singer - who has become famed for her skin-tight body stockings - says she's been "working hard this year", and that "it's important to know when you need to gain weight, or when you need to lose weight and be healthy."
She previously also revealed plans to "make a difference in the world" by shaving her head for charity.
"I'm shaving my head next year for charity - it's definitely happening if I raise a million, which I think I will.
"I've spoken to a few celebrities who are interested too. I'm quite excited at getting rid of the bob. People say, 'But your hair is so nice.'
"But I can wear wigs and no one would ever know. And if I can save some lives then that's amazing."