f(x), Friendship Bracelets In Celebration of 4th Year Debut Anniversary

Girl group f(x) members revealed a picture of their friendship bracelets in celebration of their 4th year debut anniversary.

Today, Amber posted on her Twitter, "I think time passed by so quickly. Thank you for being with me" along with a picture.

Int he picture, f(x) members are connecting their arms by holding onto each others' wrists.They all were weraing blue bracelets that were matching, revealing their friendship.

Photo Credit: Amber Twitter