Emma and Alexa at the Louis Vuitton Party

Emma Roberts and Alexa Chung at the Teen Vogue party for Louis Vuitton held in New York City last week.

Emma looked pretty in a peachy cardigan, that revealed a flash of pink underwear, black cropped trousers and Louis Vuitton heels. Emma completed her look with a sweet gold horse necklace and swallow bracelet.

Alexa was in the same Louis Vuitton Fall 2009 RTW Cancan heels as Emma, a flirty bright blue Vuitton Resort 2010 dress, Steven Alan cardigan and carried her Sofia Coppola for Louis Vuitton bag.

Alexa's cardigan is available on-line at net-a-porter.com.

And you can steal Emma's cute gold horse necklace style with the very similar Gemma Lister Gold Horse Necklace from farfetch.com.

Pics from Celebrity-Gossip.net