Roy Kim's album jacket image for the winter song releasing on December 19 was revealed.

In the image released on December 16, the song title "IT'S CHRISTMAS DAY" with Roy's name and deer antlers were shown.

With this song, Roy Kim was able to complete the four seasons with his previous songs "Bom Bom Bom," "Love Love Love," and "Home" each representing seasons spring, summer, and fall.

According to his agency CJ E&M, Roy Kim wrote the song by himself. The song is a love song that says, "Let's confess our love that we could not before because it's Christmas." He will also be holding an end-of-the-year concert on December 20~21.

"It's Christmas Day" will be released on December 19.