• Actress Song Ji Hyo attends the Burberry Seoul Flagship Store Opening Event on October 15, 2015 in Seoul, South Korea.

Actress Song Ji Hyo attends the Burberry Seoul Flagship Store Opening Event on October 15, 2015 in Seoul, South Korea. (Photo : Getty Images/Han Myung-Gu)

Saying goodbye to an old friend and a long-time colleague is never easy. South Korean actress Song Ji Hyo had an emotional filming day as she and fellow "Running Man" cast members bid farewell to Gary who decided to leave the SBS show.

"Running Man" will never be the same without one-half of the "Monday Couple" tandem, Gary. The South Korean rapper has decided to leave the long-running SBS variety program and already wrapped up filming commitments for the show.

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Recently, SBS released photo stills and interesting details to local reporters for an upcoming "Running Man" episode that will serve as Gary's final appearance in the program. Obtained by Korean news outlet OSEN, the images showed a somber-looking cast as they gathered together in an undisclosed location.

Titled "The Messy Special," Song will try her best not to cry as she spends the day with her long-time "Monday Couple" partner Gary. The actress will also hand over a special handwritten letter to Gary during the said episode.

The upcoming episode will also feature the special activities that the actress and other "Running Man" stars have organized for the rapper. With a winning prize specially prepared for Gary, Song and other cast members will try to withstand pain and challenging situations to complete their missions.

In other news, Gary recently shared his thoughts about his departure from the SBS variety show. In a fan event held in Taiwan on Nov. 3, Thursday, the South Korean musician commented that he is expecting to feel the full brunt of his "Running Man" exit in the coming weeks, Sports Chosun quoted Gary as saying.

"It hasn't been long since I've left the show so I don't quite feel it yet," Gary explained. "But next week when the time comes around that I'm usually filming, I think I will feel empty."

The rapper also admitted that he felt sorry for having left the SBS variety program. However, he shared that he needed to concentrate on his upcoming new album that he teased will contain a mix of Korean tracks and songs with Chinese lyrics.

Gary's final "Running Man" episode will be released on Nov. 6, Sunday on SBS. Watch a clip that showed Song and Gary's teamwork below: