Posh Spice 'insecure'
The singer-turned-fashion-designer Victoria Beckham - who is famous for pouting at public events - has low self-confidence and that is why she rarely smiles.
She said: "I do have my insecurities. Maybe that's why I look a little bit serious. The kind of person who's going to stand on the red carpet and have the big grin - I'm not like that.

