Guess who this star-in-hiding is? No, go on. Really try to guess. OK, we'll give you a clue. It's one of Grazia's A-list cover stars. And she's clearly suffering from a seriously bad hair day. Give up? Really? Don't want another try? OK. It's........ Jennifer Aniston! Now whilst we sympathise with the fact you might not have washed your hair (you are going through a break-up, we suppose) somehow we don't think the giant hooded look is going to take off!