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After spending weeks in chilly NYC to shoot her new role in ABC's period drama, Pan Am, Ashley Greene took the opportunity to show off her sexy legs in a pair of short shorts, while on a shopping trip in LA, on Thursday afternoon.

The Twilight star Tweeted: "LA is 80? In january? This is an amazing way to start the year!"

The 24-year-old has been named the new face of DKNY's Spring 2012 ad campaign, and after checking out the just-released vintage-style pics, it's not hard to see why!

Greene gushed to Teen Vogue of the honor: “I think it’s a huge compliment that they wanted me to be the face of DKNY. I’ve always been a fan of the brand, so I think it’s a really organic fit for me. The brand represents this really incredible style that is New York—and I love New York! So I was very flattered that they asked me to jump on-board."