Topshop US officially opens tomorrow but Sir Philip Green threw a preopening shindig and invited a gaggle of stars. The always-polished Michelle Monaghan showed up in an understated ensemble that's far from tame. On top, she chose a casual ivory tee, topped with a gray suede jacket. Black skinny jeans and fierce black platform sandals made up her bottom half. Her chunky statement necklace rounds out the look with a bang.
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