Although Girls' Generation's Taeyeon's birthday is more than a week away, fans were quick to start celebrating it with a bus advertisement!

The photo of the bus advertisement was uploaded on an online community site with the caption, "Taeyeon's birthday bus which is going around already." The bus advertisement reads, "We sincerely wish Taeyeon a Happy 26th birthday. Congratulations on Taeyeon's 26th birthday."

Taeyeon will turn 26 (25 in international age) on March 9 and her group's comeback with "Mr.Mr" comes at a perfect time with even more things to celebrate about after their all-kill on domestic major music charts and high rankings on iTunes charts around the world.

Happy early birthday, Taeyeon!