Sung Shi Kyung, Park Hyo Shin, Seo In Guk, and VIXX came together to sing "Winter Confession". The song is now in the top spots of major online charts including MelOn, Bugs, Mnet, Olleh Music, Soribada, Naver Music, and Daum Music.

The song was released on December 10th.

The song was sung by the major artists from Jellyfish Entertainment. Jellyfish Entertainment releases a Christmas track every year. The CEO Hwang Se Jun (formerly of the duo Glass Box) and the songwriters Melodesign came together to produce the song. It's a romantic track about a man who wants to share the news that the first snow of the season is falling with the woman he loves.

The selling point of the track is that the vocals of big names such as Sung Shi Kyung, Park Hyo Shin, and Seo In Guk are all available for the hearer's listening pleasure in the same track.