Cosmic Girls's SEOLA has officially released her first solo single album 'INSIDE OUT', marking a significant milestone in her career. The title track 'Without U' comes with a music video that has captivated fans, and the behind-the-scenes footage of the shoot has now been shared, showcasing the strong bond between the members.

During the music video shoot, member Soobin sent a coffee truck to the set as a show of support for SEOLA. Additionally, members Eunseo, Yeoreum, Dayoung, and Yeonjung made a special visit to the shooting location, bringing a cake to celebrate the occasion.

The album launch was accompanied by a showcase on the day of release, where Soobin and Eunseo made a special appearance to support SEOLA. They celebrated her solo debut alongside WJSN's official fan club, UJUNG, from the audience. Furthermore, nine members of Cosmic Girls, including Luda and Dawon, sent SEOLA supportive messages through social media following the release of the album.

Bona and Dayoung also showed their support by visiting the debut stage of 'Without U' at MBC's 'Show! Music Core'. Their presence in the audience next to SEOLA during the stage opening caught the attention of fans and became a talking point.

Throughout the first week of music show promotions, members took turns visiting the sets to cheer on SEOLA. Exy attended the 'M Countdown' on Mnet, while Luda was present at SBS TV's 'Inkigayo', also participating in the 'Without U' challenge, demonstrating the strong support system within the group for SEOLA's new venture as a solo artist.