f(x)'s Sulli recently modeled for Calvin Klein Jeans with bandmates Krystal and Victoria,�which emphasized the girls' svelte figures. This time, she will be the sole model for Sony Korea's Cybershot camera. Previously endorsed by prominent actresses Shin Min Ah and Lee Yeon Hee, Sulli will continue their endeavors to emphasize the product's stylishness and distinguish it from the competition. Oh Dong Yoon, the manager of Sony Korea's Digital Imaging sector, said, "We will use various advertisement methods to emphasize the product alongside Sulli's colorful charm and character". Sulli said, "I'm very happy to endorse a product I frequently use. I'll work hard!" [gallery]