Anna Wintour's 'armour'
Anna Wintour has revealed the reason she wears sunglasses indoors - to hide her boredom.
Wintour - who is the editor of US style bible Vogue - gets invited to numerous fashion shows for her job, so uses the glasses to hide her true feelings when she is unimpressed at what is being presented.
The New York Post quotes her as saying: "I can sit in a show and if I am bored out of my mind, nobody will notice. At this point, they have become, really, armour."
Wintour is not the only celebrity to hide behind her sunglasses.
Victoria Beckham is rarely seen without her huge designer glasses and has previously explained she feels better wearing them as people can see less of her face.
She has said: "I'm not over confident and feel better if I hide behind my glasses and wear a cap as that means there is less of me for people to judge."
Tom Cruise and Katie Holmes are often pictured in their shades and regularly wear them on the red carpet as well as during nights out.