South Korea, 2026 – ARTMS’ lead vocalist HaSeul held her third small-theatre concert series, HaSeul: Inner-Ego, across 4 showings on November 7 and 8, 2026, at the ECC Youngsan Theater at Ewha Womans University in Seoul, South Korea.
This marked HaSeul’s third small-theatre concert, following HaSeul Music Studio 81.8Hz in 2023 and HaSeul Small Theatre Concert: Our Fairytale in 2025.
After taking a hiatus in April 2026 to undergo shoulder surgery, HaSeul gradually returned to music with two solo singles: “Again” in June and “Afterglow” in September. She subsequently announced her third small-theatre concert, HaSeul: Inner-Ego, for November 2026.
With a seating capacity of 288, the ECC Youngsan Theater provided an intimate setting for HaSeul to connect with her OURII fandom and showcase a more personal side of herself. Through heartfelt conversations and a thoughtfully curated setlist, featuring rearranged songs accompanied by a live band, she offered the audience a glimpse into her inner world. The setlist comprised 24 songs, with a runtime of approximately two hours.
The fourth and final show also introduced a unique pay-what-you-want concept, allowing attendees to decide how much they wished to pay after experiencing the performance. Attendance was determined through an application process via the COSMO fan app, while fans who had attended all three regular paid shows automatically qualified for entry.
The concert opened with a selection of songs representing different milestones in HaSeul’s nearly decade-long career. She began with her third solo digital single, “Love Poison” (2025), followed by ARTMS’ “Unf/Air” (2024), before performing “Let Me In” (2016), her pre-debut single as the third member of LOONA.
Following the opening performances and stage greeting, HaSeul introduced the meaning behind the concert’s title, Inner-Ego. She described it as a difficult personal journey of getting to know one’s inner self and identity, and the small-theatre concert was a special opportunity to get closer not just through the discovery of her own hidden world herself but also that of her fans.
The second segment, a “Party Corner”, featured a carefully curated medley of solo songs by her fellow ARTMS members. HaSeul performed covers of Choerry’s “Pressure”, JinSoul’s “Ring of Chaos”, Kim Lip’s “Can You Entertain?”, and HeeJin’s “sAvioR”.
The show then transitioned into its third and main segment, “DEAR MY EGO: A Letter to Myself”. Through the COSMO fan app, audience members were invited to submit short messages, which HaSeul selected and used as prompts to share personal stories across four themes: “To My Past Self”, “To Me No One Knows”, “To Me Now”, and “To My Future Self”.
Complementing the reflective atmosphere, HaSeul prepared a series of cover performances, including Jaurim’s “Twenty-Five, Twenty-One”, Kim Kwang-seok’s “Around Thirty”, and Rooftop Moonlight’s “You Did a Good Job Today”. Accompanied by a pianist and cellist, the performances brought an added emotional depth to the songs.
The live band then returned for HaSeul’s own single, “Again”, followed by Lucy’s “Flowering”, which was selected by OURII through a COSMO Event Gravity poll, bringing the third segment to a close.
For the fourth segment, the atmosphere shifted into that of a jazz bar, with HaSeul delivering refreshing performances of her solo singles “Plastic Candy”, “Fragile Eyes”, and “Afterglow”. The band gave these familiar songs a bossa nova-inspired arrangement, which was particularly well received by the audience. Maintaining the momentum, HaSeul selected ARTMS’ “Born Stunner” and “Blue Blood” to round out the main set on a high note.
Following enthusiastic cheers from the audience, HaSeul returned to the stage for the encore with a medley of LOONA songs, including “Not Friends”, “PTT”, “So What”, “Ding Ding Dong”, and “Hi High”.
After a group photo session, HaSeul invited the audience to join her in a sing-along featuring ARTMS songs “Sparkle”, “Virtual Angel”, and “Pixel Memory”. During the final song, she stepped off the stage to take selfies with fans, a fitting end to an intimate and memorable show.
More photos: https://www.facebook.com/media/set/?set=a.1577466604399030&type=3
Article and photos: Hanson
