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Hilary Duff's skirt was stained with a mystery substance.
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The actress stepped out of a TriBeCa hotel September 28th after a long night of partying.
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The Duff appeared worse for the wear on her 29th birthday, wearing a high-necked pirate blouse that highlighted her bloated visage.
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The buttons on her too-small leather skirt strained to contain her thighs.
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She gave a strained non-smile to passers-by on the street.
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Could they have spotted the unsightly residue on her outfit?
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The former Disney star gave one final grin through clenched teeth as she entered her vehicle, flashing the slashed price tag on her nude pumps.