HONK THE HORN's MOCO Covers HALVES' 'Iyaiya' — And She Put Her Whole Heart Into It

MOCO of virtual music unit HONK THE HORN is taking on 嫌々 (Iyaiya) — originally by HALVES — and the full cover MV premieres on YouTube on October 26, 2026 at 9:00 PM JST. If you’ve been following MOCO’s own posts leading up to this, you already know the energy: she’s calling the sound source, illustrations, and MV “divine,” and says she put real care into the vocal take. That’s a promising setup.

What We Know About MOCO’s ‘Iyaiya’ Cover So Far

The song is a cover of Iyaiya by HALVES, and this version arrives as a full production — not just an audio upload with a static image. MOCO handles vocals, with a dedicated team behind the visuals and mix (more on them below). The title 嫌々 (Iyaiya) translates roughly to “reluctantly” or “grudgingly,” and given the reputation of the original, this is the kind of track that lives or dies on attitude — which makes MOCO’s self-described careful vocal work the thing to watch for when the premiere goes live.

The Premiere: When and Where to Watch

The MV is set as a YouTube premiere going live October 26 at 9:00 PM JST, which means fans can pile into the chat and experience the first watch together. MOCO herself has been hyping it on X, telling followers to look forward to it and promising that she poured real care into the performance. Premieres like this one are half about the song and half about the shared first-listen energy — and HONK THE HORN’s fanbase tends to show up.

The Team Behind the MV

The credits read like a proper production: Norixio handles illustration, U is on movie/video work, and the mix comes from Yon (四). A full original MV treatment — bespoke art, edited video, proper mixing — signals that this isn’t a casual cover drop. MOCO flagged in her announcement that every element, from sound source to visuals, came together in a way she’s genuinely proud of.

Why This Release Matters for HONK THE HORN

HONK THE HORN is a unit built around MOCO and fellow member BAMBI, with official goods sold through the RK Music store — so the group sits in that RK Music orbit alongside acts like KMNZ and VESPERBELL. Solo covers from unit members are always an interesting litmus test: they show off an individual voice without the unit dynamic, and they tend to influence what the group does next. Whether this cover points toward more solo output from MOCO or feeds back into HONK THE HORN’s own releases, it’s worth catching live.