On November 21 airing of 'Yoo Hee Yeol's Sketchbook,' MC Yoo Hee Yeol hinted at the line up of artists who could possibly appear on the Christmas special episode of the show. 

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Yoo Hee Yeol joked while mentioning the upcoming special, stating "Christmas is approaching. The producers are already thinking a lot about how to achieve a show below the expectations of our audiences. I hear that musicians are already getting ready to avoid us to avoid being one of the guests. The names I call out right now, beware." 

He then called out Seo Taiji, Psy, Suzy, G-Dragon, Sung Si Kyung, Lee Juk, and Dynamic Duo, hinting that they were on the list of the guests the show is planning to recruit for the special. 

Yoo Hee Yeol also added on lightheartedly, "I really wish that Dynamic Duo would come out. Especially Choiza."