The 'Monday Couple' of Song Ji Hyo and Gary shared a special yet hilarious moment during this week's Christmas special episode of 'Running Man'!

This year's Christmas episode started much like last year's, with the cast members separated and given a mission to pair off into couples before arriving at the final location.

Although Song Ji Hyo called many people, the only one to pick up ended up being Gary, the other half of the 'Monday Couple'. 

"It's been fated that we're going to be a Monday couple forever," Gary told her on the phone. "Even if you get married, you have to stay at my place on Mondays."

Song Ji Hyo wasn't moved by the gesture, however. "This isn't the time for comments like that!" she yelled into the phone, frustrated. "Just get yourself over here."

SEE ALSO: Song Ji Hyo to return to the big-screen in horror film 'Savior'