How do you celebrate your love for your favorite idol member? Jewelry, flowers, chocolate? In Asia, it’s well known that the fan culture is a bit on the extreme side. So when you’re celebrating a popular leader’s upcoming 25th birthday – you’ve got to go out with a big bang. An image surfaced on an online community forum which featured a billboard of Taeyeon on a public bus in Seoul. The billboard was a congratulatory message (“Congratulations on Taeyeon′s 25th birthday. 20130309. We congratulated Taeyeon′s 25th spring. Happy Taeyone Day.”) for Taeyeon’s upcoming birthday (it’s on March 9th), which was bought by fans.