Jo Woo-jae and Byun Woo-seok's singing teacher, John Park, appeared.
MBC variety show 'What are you doing when you play?In ', members were depicted singing 'Winter Song' with voices representing winter.
John Park and Ailee appeared as the first runners of the original song on this day, and the members showed a series of "I love it" to the appearance and song of the two.
In particular, Joo Woo-jae "I took John Park to a coin karaoke room the day before yesterday to learn how to sing." (Byeon) Woo-seok and I. I've loved John Park so much since a long time ago. I thought I should do it when I get a chance to sing. At that time, he appeared surprised, saying, `I also talked about the contents of `What to play?'
At this time, Yoo Jaeseok is "Wooseok?", and he/she did not want to see Joo Woo-jae, who pretended to be close to Byun Woo-seok, drawing laughter.
Meanwhile, Yoo Jae-seok drew attention by introducing the 'Winter Song' item, which will be released in a month, saying, `I couldn't go out because the broadcast was pushed out for two weeks.' The originally planned broadcast date was December 14th last year, but the broadcast was postponed due to the cancellation of the broadcast. In response, it was decorated as a Christmas episode in 13th month and presented viewers with winter song gifts.
