Hilary Duff's skirt was stained with a mystery substance.
The actress stepped out of a TriBeCa hotel September 28th after a long night of partying.
The Duff appeared worse for the wear on her 29th birthday, wearing a high-necked pirate blouse that highlighted her bloated visage.
The buttons on her too-small leather skirt strained to contain her thighs.
She gave a strained non-smile to passers-by on the street.
Could they have spotted the unsightly residue on her outfit?
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.