Dominic Cooper, January Jones and Rupert Everett helped Donatella Versace celebrate the launch of the Central Saint Martins 20:20 Fashion Fund at the Connaught Hotel in Mayfair, London last night.

January Jones is currently in London filming ‘X Men’ and as you know she’s very much Donatella’s favourite.

The ‘Mad Men’ star and unofficial brand ambassador for Versace wore a very severe high bun with her Versace Spring 2011 dress and black suede pumps.

Her black cocktail dress with an open back had shiny black buttons details and patent leather straps.

Donatella opted to wear a very sexy chocolate metallic Versace dress.

This dress didn’t appear on the runway, but if you look at several looks from the Fall 2010 collection, you can see at least 3 looks this dress was derived from.

Credit: NYMag.com & Daffyd Jones www.dafjones.com