I believe that Nicole Richie was carrying a large Fendi 2jours multi coloured calf hair (note: the large 2jours does not come with the long strap).
The multi colour/colour block theme is still being carried forward by Fendi to its 2013 collection, but this season we get 2jours colour block in plain leather (i.e. no hair or fur).
Honestly, this 'hairy' bag is slowly growing on me. However I do understand that it is now become very rare to get one like Nicole's as it was from past season collection.