Singer and actor Seo In Guk revealed a photo from her surprise birthday party.

On October 24th, Seo In Guk uploaded a photo onto his Twitter with the caption, "Yesterday was my birthday, but I was shy being congratulated for it. Thanks to my company family for wishing me a happy birthday."

In the photo, Seo In Guk is happy to be receiving a birthday cake. It's particularly cute how he looks bashful in this photo.

Upon hearing news of Seo In Guk's birthday party, internet users commented, "Seo In Guk is so cute at this birthday party," "Happy birthday, Seo In Guk," and "Seo In Guk's birthday photo is so adorable."

Seo In Guk stars in the movie "No Breathing," which will be released on October 30th.

Photo credit: Seo In Guk's Twitter