Lee Eun Sang Announces October Solo Comeback Following YOUNITE Departure

Lee Eun Sang is officially preparing to begin a new chapter in his career.

The former X1 and YOUNITE member has announced that he will return with new music as a solo artist on October 21, marking his first musical release since concluding his activities with YOUNITE.

The upcoming release will also signal his return to the music scene following an extended break.

Brand New Music announced that Lee Eun Sang will release his new album through various music streaming platforms at 6 p.m. KST on October 21.

The agency began building anticipation for the release earlier this month with a mysterious teaser poster that offered fans the first clue about his upcoming solo project.

The teaser features a clean white mailing envelope with the words “IN TRANSIT” prominently stamped across it.

The poster also includes the scheduled arrival time of “October 21 at 6 PM KST,” creating the impression that new music from Lee Eun Sang is now on its way to fans.

The envelope-inspired concept carries particular meaning given that the album represents a new beginning for the singer.

After spending several years working as both a group member and solo artist, Lee Eun Sang is now preparing to continue his musical journey independently.

His upcoming release is attracting attention not only because it marks his first solo project after leaving YOUNITE, but also because it follows a period in which he stepped away from group activities.

His return therefore represents an important transition in his career, giving fans an opportunity to hear what kind of musical direction he has chosen for this next stage.

From X1 and YOUNITE to a New Solo Beginning

Lee Eun Sang first entered the K-pop industry in 2019 as a member of X1, the project group created through Mnet’s audition program “Produce X 101.”

Following X1’s disbandment, he continued his career as a solo artist and released music independently before taking on another group role.

In 2022, Lee Eun Sang re-debuted as a member of YOUNITE under Brand New Music.

During his time with the group, he took on the roles of co-leader and lead vocalist while also expanding his involvement behind the scenes.

Rather than limiting his activities to performing, Lee Eun Sang participated in songwriting, composing, and producing.

His contributions included self-written and self-composed tracks featured on YOUNITE’s albums, allowing him to gradually demonstrate a broader musical identity.

His time with YOUNITE eventually came to an end after he took a hiatus for health reasons in May of last year.

In June 2026, Brand New Music announced that, following his recovery and discussions regarding his future, Lee Eun Sang would conclude his group activities and begin a new chapter as a solo artist under the agency.

The agency explained at the time that Lee Eun Sang had expressed a desire to pursue a new musical direction and vision.

After discussions involving the singer, the YOUNITE members, and PARA MUSIC, Brand New Music decided to respect his wishes and support his next step as a solo artist.

His October comeback will therefore be more than simply another release.

It represents the first musical step of his career after officially moving away from group activities and returning to his solo path.

“IN TRANSIT” Teaser Builds Anticipation for October 21

The first teaser for Lee Eun Sang’s upcoming release was revealed on September 23 through his official social media channels.

The minimalist white envelope design carries the phrase “IN TRANSIT,” alongside the release information “ETA 10/21/2026 (WED) 6:00 PM KST.”

The concept suggests that something is currently making its way toward fans, while the absence of a revealed album title or detailed track information leaves much of the comeback project a mystery.

Brand New Music has also highlighted Lee Eun Sang’s development as an artist.

According to the agency, he has consistently built his own musical depth and will showcase a deeper sensibility and expanded musical spectrum through the upcoming album, reflecting his growth as a singer-songwriter.

The upcoming release also comes roughly 17 months after Lee Eun Sang temporarily halted his YOUNITE activities because of health concerns.

In July, Brand New Music confirmed that he had recovered and was ready to pursue his solo career after concluding his activities with the group.

Alongside his musical activities, Lee Eun Sang has explored acting, appearing in projects including the web drama “Let Me Off the Earth” and JTBC’s “Idol: The Coup.”

His career has therefore included experiences across group promotions, solo music, songwriting, producing, and acting.

Now, all attention is turning toward October 21. With the “IN TRANSIT” teaser serving as the first official signal of his new era, fans are waiting to discover the album’s title, concept, tracklist, and musical style.

After moving through several different stages of his career, Lee Eun Sang is preparing to introduce a new version of himself as a solo artist.

His October release will offer the first opportunity to see how his experiences with X1 and YOUNITE have shaped the sound and identity he wants to establish moving forward.