After their debut shooting for variety program 'f(x) Koala', the girls of f(x) spent their first Christmas as a group in a foreign country. f(x) Koala is a program that showcases the Korean culture around the world. Their Christmas destination turned out to be Vietnam, where the girls had a small party. In a famous cafe in Vietnam, the members decorated a Christmas tree and sang carols, fully embracing the Christmas spirit. Prior to departing for Vietnam, the f(x) members played the Manito (secret friend) game where they prepared gifts for their secret friend, and wrote heartfelt letters. After exchanging the letters, the members shed tears, which also touched the hearts of the production crew. During their stay in Vietnam, some Korean exchange students and Vietnamese fans had followed f(x)'s van on their motorcycles, taking pictures and videos, and creating hot topics on the internet. This episode will air on Christmas day at 1PM. Source + Photos: Nate