Netizens may have found Sung Si-Kyung's doppelganger.

A picture titled "Sung Si-Kyung secretly debuts in Taiwan?" was a recent online sensation.

It happened to be a picture of a Taiwanese actor resembling Sung Si-Kyung, who starred in the Taiwanese version of the Korean drama "Playful Kiss". His name is Hong Jiao Nang.

Hong Jiao Nang's facial features and even his eyebrows resemble that of Sung Si-Kyung. On top of that, the Taiwanese actor is wearing horn-rimmed glasses in the picture, which happen to be a part of the trademark Sung Si-Kyung look. The resemblance between the two is striking.

Astonished netizens commented saying "Hong looks like a chubbier version of Sung Si-Kyung," "How could they look so alike?" "I thought he was Sung Si-Kyung!"