KiiiKiii's '404 (New Era)' Is the K-Pop Breakout Track of Early 2026

KiiiKiii's '404 (New Era)' arrived on January 26, 2026, as the title track of the five-member Starship Entertainment group's second EP Delulu Pack — and within sixteen days it had reached No. 1 on the Melon TOP100, a timeline that established the group as the breakout rookie act of the year's first quarter. Produced by LDN Noise — the UK production duo behind landmark records for SHINee and EXO — the track fuses 90s UK house piano chords with Y2K nostalgia and a pulsing bassline designed to move bodies as much as it rewards headphone listening. KiiiKiii 404 New Era does not ask for patience; it commands attention from its first four bars.

The choice of LDN Noise as producers is the strategic move that explains why '404 (New Era)' sounds simultaneously classic and contemporary. The London-based duo, responsible for SHINee's 'View' and EXO's 'Power,' built their reputation bridging K-pop idol performance structures with club-originated Western sounds — and they apply the same methodology here. The house piano motif at the track's core signals the genre's 1990s Chicago and UK roots directly, but the layered percussion arrangement and the way each vocal drop lands against the beat belong entirely to 2026. The result is a track that K-pop fans who grew up on second and third-generation idol music will recognise as sophisticated without it feeling backward-looking.

The EP concept — 'Delulu Pack,' drawing on Gen Z's embrace of 'delulu' (short for delusional, reframed as a positive manifestation tool) — gives the album a playful conceptual wrapper that '404 (New Era)' uses lightly rather than literally. The choreography, created by dancers Amy Park and Redy, channels the concept through movement: high-energy, community-oriented steps that ask fans to participate rather than spectate. That accessibility is precisely how the dance challenge engine got started, and why it scaled.

By February 10, 2026, '404 (New Era)' had reached No. 1 on the Melon TOP100 real-time chart sixteen days after the January 26 release — faster than any of their debut EP singles managed. Simultaneously, the track topped Spotify Korea's daily chart and YouTube Music's daily chart on February 8, giving KiiiKiii a clean sweep of the three most closely watched digital metrics in the Korean market. The Delulu Pack EP built on the momentum of the group's debut EP Uncut Gem (March 2025), which had accumulated over 30 million Spotify streams — a foundation that converted into activated day-one listeners capable of pushing the new title track toward chart peaks at a pace that surprised even industry observers.

On broadcast, the group earned their first-ever music show win on Show! Champion, then followed it with their first terrestrial broadcast win on Show! Music Core — two trophies in a single comeback cycle. For a group in their second EP era, two wins in one promotional run represents unusual acceleration, and positions KiiiKiii — comprising members Jiyu, Leesol, Sui, Haum, and Kya — as one of the most closely watched fourth-generation groups heading into the rest of 2026.

The '404 (New Era)' dance challenge accumulated over fifty million combined views across YouTube Shorts, TikTok, and Instagram Reels within weeks of the track's release. Amy Park and Redy built the challenge step around the track's most recognisable hook — accessible enough for casual participants while containing enough stylistic precision to reward those who commit to learning the full sequence. KiiiKiii takes its name from the Korean onomatopoeia for giggling, and the group's approach to challenge content embodies that energy: visibly enjoying the choreography, responsive to fan covers, and generous with reactions on social media. That combination of creator strategy and genuine personality is what accelerates challenge views from tens of millions toward the kind of longevity that keeps a track charting past its promotional window.