f(x)'s Krystal and Amber have teamed up with fashion brand "Thursday Island" for a sweet photoshoot with "Oh Boy!" magazine. The photoshoot was meant to celebrate a new line of special-edition T-shirts that were inspired by Vincent van Gogh's work. Since the girls are widely known for their slim figures and youthful looks, they were deemed as the best possible models for these casual looks. A representative said, "f(x) can be considered as the representative icons of this generation's youth. They're known for taking on various different style transformations. Krystal and Amber's boyish charms have come together in a stylish way that makes these art pieces easier to approach." [gallery columns=4] Source + Photos: Sports Chosun via Naver