ASTRO member and acclaimed solo artist MJ has officially announced his much-anticipated return to the music scene with a new digital single titled “12시 25분 (CLOCK).”
The announcement, made on December 8th KST via his official social media accounts, marks his first official solo comeback in approximately four years, following the release of his single “Happy Virus” in 2021.
This track is poised to be a special winter offering, scheduled for release on December 16th at 6 PM KST, perfectly timed for the holiday season.
The initial teaser content has already sparked excitement among fans, showcasing a cozy, festive concept tailored for a Christmas-themed release.
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Concept and Visual Teasers
The initial teaser image provided a strong visual hint of the single’s concept, immediately evoking a festive and warm Christmas atmosphere.
In the image, MJ is seen embodying comfort and holiday spirit, dressed in a vibrant red knit sweater paired with a cozy knitted hat.
He is pictured lying contentedly on a bed of snow, with the overall aesthetic clearly designed to align with the charm and warmth of the winter holiday season.
This visual direction suggests that the song “12시 25분 (CLOCK)” will lean into a sentimental, heartfelt theme, potentially one tied to romance, nostalgia, or the sheer joy and anticipation of the Christmas period.
The choice of title, “12시 25분 (CLOCK),” which translates to “12:25 (CLOCK)” in English, holds significant seasonal meaning, strongly hinting at 12:25 AM or PM on December 25th (Christmas Day).
This specific time reference adds an intimate, time-sensitive layer to the track, leading to fan speculation that the song might revolve around a pivotal, perhaps romantic, moment occurring at that specific hour.
It could detail the anticipation of the moment Christmas officially begins at midnight or a deep, heartfelt thought shared just after the holiday has dawned.
The time stamp effectively makes the song a musical snapshot of a moment in time that carries deep emotional weight during the most festive time of the year.
Context of Recent Activities and Long-Awaited Solo Return
While this single marks MJ’s first official solo comeback since his 2021 track “Happy Virus,” the artist has maintained a visible presence in the music world through various projects.
He contributed the track “Why So Pretty?” to the “K-Music ON!” project in September 2024.
Although this earlier release was part of a specific compilation and not a formal solo comeback, it helped keep his individual artistic persona active and his vocal talents fresh in the minds of the public.
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Furthermore, MJ has continued to be a dynamic force within his main group. Last August, he debuted as a member of ASTRO’s latest subunit, ZOONIZINI, alongside fellow member JinJin, with the release of their mini-album DICE.
These varied activities demonstrate his continuous dedication to diverse musical endeavors, even as his fans eagerly awaited a dedicated, signature solo single release.
The upcoming digital single “12시 25분 (CLOCK)” is therefore highly anticipated, as it returns the spotlight squarely to MJ’s individual artistry and distinctive vocal talents.
His established reputation within ASTRO and his prior solo work set a high bar for this new track.
The strategic release date of December 16th positions the song as a key, mood-setting track in the lead-up to the peak of the Christmas festivities.
Fans are looking forward to a melodious and charming addition to their winter playlists, expecting the single to fully showcase MJ’s ability to convey emotional depth and versatility as a solo vocalist, thereby cementing his position as a multifaceted artist within the competitive K-Pop landscape.

























