Star Tracks
The pop star and the supermodel share a moment together in London. Plus: Jen & Marc, Posh, Gwyneth and more
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CHILLY RECEPTION
Call her the upright citizen brigade! A chilled-looking Sienna Miller looks ready to tiptoe inside The Late Show's (equally chilly) New York City studio on Thursday, where she sat down with David Letterman to chat about her film Factory Girl.
