Peter Kramer/Bravo/NBCU Photo Bank via AP Images

WHAT SHE WORE Rossum stopped by the Bravo clubhouse for an appearance on Watch What Happens Live in a printed Peter Pilotto sheath and pointy-toe Louis Vuitton heels.

CELEBRITY: Emmy Rossum

DESIGNER: Louis Vuitton

TREND: Black

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Emmy Rossum

Emmy Rossum in Peter Pilotto