I'm sorry but what the...? Even as a sometimes fan of Sienna Miller, I cannot begin to fathom this latest fashion decision. Did she accidentally forget the rest of her outfit? Or is this just another way to garner more publicity by attempting the opposite of wearing no pants under a frock and simply wearing pants but no frock! Whatever her reasons, in our books this is just not on! Our advice - stick to the gorgeous dress that you had on at the beginning of the premiere of your latest flick and DON'T EVER go out in just your Bridget Jones pants again... Argh!

For more celebrity goss visit Star Trip - it's addictive...

Get Her Look: Sienna Miller | Sienna Miller turns Fashion Designer | Sienna Miller is the New Face of Pepe Jeans