On February 6, TVXQ's Yunho posted a photo of himself on TVXQ's official homepage thanking fans for the birthday wishes.

In the revealed photo, the singer is dressed casually wearing a sports cap and is holding a delicious red velvet cake in light of celebrating his big day. Though he doesn't look it, Yunho's now officially 31 years old, and he's been entertaining fans since he officially debuted with TVXQ under SM Entertainment in December of 2003.

Meanwhile, his beloved fans have made numerous donations to commemorate the star's birthday, even building an entire library in Yunho's name!