It features the Super Junior members with Henry and Zhou Mi singing in the studio and behind the scenes footage of SM artists during the album's photoshoot.

[6] All SM artists, including Kangta, BoA, TVXQ, TRAX, The Grace – Dana & Sunday, Super Junior, Girls' Generation, Shinee, f(x), Zhang Liyin, and J-Min, participated in the winter album.

[10] "Last Christmas", sung by Shinee, was described as an electronic dance song that contains the three-dimensional charm of "dreamy and powerful" synth-pop that was remade to the group's "distinct" color.

[13] "Like A Dream", sung by TRAX, is a newly recorded English version of the song from the group's third extended play (EP), Blind, to match the winter mood.

"Happy Xmas (War Is Over)", sung J-Min, was a remake from the original track of John Lennon and Yoko Ono with the singer's "refreshing and appealing" vocals.