Nicole was wearing a grey cardigan matched with a white Tee and a black and white Zebra print scarf. You can shop Nicole Richie's entire outfit at http://www.shopthetrendboutique.com/
Nicole's grey cardigan is the bias wrap by Fluxus - $112.
Nicole's white burnout Tee is also by Fluxus - $69.
Nicole's silk Zebra print scarf is by Tolani - $99.
I am a huge fan of all the oversized Fluxus burnout style Tee's, i think they are a unique twist on the standard Tee.