K-Pop girl group f(x) Krystal and her sister Jessica, a former SNSD member,
and many other K-Pop idols including KARA Goo Hara, 2NE1 Sandara Park,
CL, and EXO Kai attend the 10th W Korea Breast Cancer Campaign 'Love Your W'
held at newly opened Four Seasons Hotel in Jongro-gu, Seoul on October 27, 2015.