參與成員：Taeyeon/Jessica/Sunny/Tiffany/Hyoyeon/Yuri/Sooyoung/Yoona/Seohyun

130103 SNSD@Mnet Mcountdown Open Studio

https://docs.google.com/file/d/0B30tYRZUpOs5d1hESmQyUU92N2s/edit