All knickers and no trousers

What's with celebs and underwear at the moment? First Britney can't seem to put any knickers on. And now Sienna Miller wears her knickers on top of her tights instead of trousers. And no, she hasn't just stepped out of a dance class - it's the New York premiere of Factory Girl.

I know she started a major trend with her floor skimming boho skirts, as well as a minor trend last summer by wearing a swim suit and mini combo around town. But she has also tried out other fashion statements with less success. The bowler hat anyone? I'm hoping this big knickers and tights look will go the same way as the hat for all our sakes. What Britney and Sienna don't seem to realise is that, unless you are a teenage boy or a sad man, there's such a thing as too much information.