Swift puts on a show for The X Factor in London. Plus: Stephen Colbert, Liv Tyler, Ben Affleck and more
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Published: Monday Oct 15, 2012 | 05:00 PM EDT
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Liv Tyler is in full-on Halloween mode as she leads the way for son Milo, 7, – who showed off his ferocious mask! – after picking up supplies Sunday at a New York City costume shop.
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