January Jones and her fellow ‘Mad Men’ cast mates visited the New York Stock Exchange to ring the bell on Wednesday in New York City.

The actress wore a Jason Wu Pre-Fall 2012 dress.

Her black-and-white printed trompe l’oiel dress with long sleeves and an asymmetric hemline was teamed with a black leather waist-cinching belt and black Jimmy Choo ‘Vamp’ criss-cross platform sandals.

Wavy hair and a red lip shade completed the look.

Jon Hamm (in Joseph Abboud) and John Slattery both opted for grey suits, whilst Christina Hendricks looked chic in black and white and young Kiernan Shipka was totes adorable in a dark grey dress.

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