KiiiKiii and Hearts2Hearts made their highly anticipated debut on February 24, setting the stage for a potential shift in the K-Pop landscape. KiiiKiii captivated Gen-Z audiences with bold promotions, including an interactive website and surprise releases like I DO ME. Their rapid rise, alongside industry giants like IVE, highlights the growing influence of emerging groups in shaping K-Pop’s future.
KiiiKiii and Hearts2Hearts Debut Sparks K-Pop Generation Shift
Although the boundaries between K-pop generations beyond the third may seem increasingly blurred, the emergence of “major rookies” continues to reshape the industry. Traditionally, when the youngest groups from the “Big 3” agencies—SM Entertainment, JYP Entertainment, YG Entertainment—and powerhouse HYBE gain widespread popularity, a new generation is often marked. These debuts not only signal fresh trends but also redefine the competitive landscape of K-pop.
Two Promising Fifth-Generation Girl Groups Emerge
On February 24, the K-pop world witnessed the simultaneous debut of two highly anticipated girl groups, heralded as quintessential representatives of the fifth generation. SM Entertainment introduced Hearts2Hearts, its first girl group in nearly five years, while Starship Entertainment launched KiiiKiii, positioned as the successor to fourth-generation top idol group IVE. These groups, which have been regarded as rivals even before their official debuts, captivate audiences with their distinct and contrasting styles.
KiiiKiii Debut Embraces Gen-Z Vibe with Unique Promotions
While Hearts2Hearts channels the wistful nostalgia of early 2000s K-pop, KiiiKiii (comprising Jiyu, Leesol, Sui, Haum, and Kya) brings an audacious and eclectic mix of Gen Z’s (Generation Z) individuality. KiiiKiii’s marketing strategies, aimed squarely at the current generation, leverage tailored promotions and interactive digital experiences. These efforts have paid off, as the group steadily gains popularity through word-of-mouth and viral trends.
Innovative KiiiKiii Website Boosts Debut Hype
KiiiKiii’s promotional website, “kiiikiii.kr,” received widespread praise for its innovative design that aligns with Gen Z’s love for freedom, uniqueness, and diversity. The site, themed as a “jam factory,” showcases the group’s original identity with interactive elements. Visitors can explore concept photos and enjoy a virtual drive accompanied by KiiiKiii’s music, highlighting the playful and immersive nature of the group’s branding.
Early Success with ‘I DO ME’ Music Video
Before officially debuting, KiiiKiii surprised fans by releasing the music video for their pre-debut track “I DO ME” on February 16. The video soared to the top of YouTube Korea’s trending videos within 12 hours of its release, a testament to the group’s appeal. This swift success reflects how well KiiiKiii’s content resonates with Gen Z’s media habits, particularly their affinity for short-form videos and real-time trends.
KiiiKiii’s Y2K Concept Shines in DEBUT SONG Music Video
KiiiKiii’s debut album “UNCUT GEM,” released on February 23, features the track “DEBUT SONG,” which taps into the Y2K aesthetic—a style Gen Z finds irresistible. Though the self-congratulatory lyrics sparked mixed reactions, many appreciated the nostalgic visuals in the music video. “DEBUT SONG” mirrored the success of “I DO ME,” again reaching YouTube’s trending list within 12 hours.
KiiiKiii and Hearts2Hearts Compete as Debut Rookies
Despite debuting on the same day as Hearts2Hearts, KiiiKiii has managed to hold its ground. While SM Entertainment is often seen as the “idol powerhouse,” Starship Entertainment, traditionally considered a mid-tier agency, is making significant strides. Following IVE’s success, KiiiKiii’s promising start suggests that Starship may not only be on the rise but potentially set for a breakthrough.
IVE and KiiiKiii Debut Tracks Dominate Music Charts
KiiiKiii’s debut single “I DO ME” became a hot topic on the Korean community site MLBPARK, where fans praised both the group’s charm and the quality of their music. The track climbed to third place on the Bugs chart, right behind IVE’s “REBEL HEART” and “ATTITUDE.” Many found it heartening to see a “big sister” and “little sister” group achieving success together. The song also entered Melon’s TOP 100 at 88th place within five hours of its release, which some interpret as a sign of support from IVE’s fanbase, DIVE.

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The new music style, unique music video, the members are so pretty, and the title is fun!