Over the past week, the f(x) trio of Sulli, Victoria, and Krystal have been showing off their beautiful bodies through a�Calvin Klein Jeans campaign for their new line of X Jeans. �Now you can see them in motion, as mini movie videos of the three have been released and Krystal has been added to the mix! �These collaboration videos between Hip idols f(x) and Calvin Klein Jeans, were made by famous creative CF director, Yongyi, and renowned music director, Yoon Sang. If you thought the girls looked sexy in the photos, you'll love them even more in the videos. Sulli Victoria Krystal Thanks to Summer Hsu for the tip