On the August 20 episode of 'Night Goblin', F.T. Island's Hongki and NU'EST's JR battled it out in a test of their English skills.
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The two were asked what an electric fan (seonpoongki in Korean) was called in English. JR started off by guessing, "Air conditioner?" which made the cast giggle. At that moment, Lee Soo Geun caught Hongki laughing and so he said, "Hongki, you tell us what it's actually called in English." Hongki looked around nervously and then guessed, "Propeller?" which made the whole cast laugh once more.