On December 9, SM Entertainment uploaded a post on all their official social media account announcing the agencies' winter album along with the upcoming tour.

Titled 'SMCU EXPRESS,' all the artists such as Kangta, BoA, TVXQ, Super Junior, Girls' Generation-Oh!GG, SHINee, EXO, Red Velvet, NCT, aespa will be participating in this project.

According to the poster and the announcement, SM Entertainment will be releasing the SM TOWN Winter album on December 27 and will hold its winter concert on January 22, 2022.

Many netizens became excited to see all the SM artists joining together for this event and were ecstatic to see various SM idols participating in the concert.

Netizens commented, "Wow," "The logo is so pretty, subway station map," "I'm so excited," "It's been how many years?" "The winter album is coming," "My heart is fluttering just hearing about this winter album," "Oh wow, SM concert," "Oh all SM artists' names are on it," and "What is this? an SM town album?"