Namoo Actors recently revealed several still cuts of Kim So Yeon, dressed in unflattering attire and wearing a suspicious, skeptical expression. 

Why the sudden release of Kim So Yeon's photos from the agency? Well, it turns out that the actress was invited to make a special cameo on 'Happy Ending Once More,' on the suggestion of Jung Kyung Ho himself, who personally invited her! If you remember, he and Kim So Yeon had starred in 'Falling for Innocence' together, which aired early last year. 

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That's not all; actor Kwak Si Yang, who is Kim So Yeon's 'husband' on 'We Got Married,' will also be making a cameo appearance! 

If you want to catch Kwak Si Yang and Kim So Yeon, then tune into the drama when it premieres on January 20 at 10pm KST on MBC!