Stray Kids released the holiday special single "Christmas EveL" and double title songs "Christmas EveL" and "Winter Falls" at 6 p.m. on November 29th. The single album "Christmas EveL" topped Hanteo Chart's weekly chart of albums (2021.11.29 ~ 2021.12.05) and Gaon Chart's weekly chart of retail albums of the 49th week of 2021 (2021.11.28 ~ 2021.12.04). In particular, they became the "Million Cell Artist" with their second full-length album "NOEASY" released in August, exceeding 1.27 million cumulative shipments of Gaon Chart as of October, and once again strengthened on the album chart, proving their status as a "fourth generation leader in K-pop."

The music video of the new song "Christmas EveL" increased global fans' satisfaction with its members' charm and year-end atmosphere, and surpassed 30.3 million views on YouTube around 1 p.m. on December 8th.