tuki. and Hoshimachi Suisei announce joint live show

tuki. and Hoshimachi Suisei have announced a joint live show at K-Arena Yokohama on December 20, 2026. The concert is titled "Hoshifuru Bansankai"; according to KAI-YOU, ticket presales began on August 30.

The key visual for the event comes from wataboku, who also works on artwork for tuki. Further ticket details will be provided via the official event page.

Collaboration has developed since 2025

The joint stage continues a collaboration that publicly began back in 2025. tuki. and Hoshimachi Suisei then published videos of a joint karaoke session on their respective YouTube channels. Alongside their own songs, both also talked about music and their work there.

In December 2025 another connection followed: tuki. wrote the song "Suisei" for Hoshimachi Suisei. KAI-YOU accordingly places the newly announced live show as a continuation of this musical collaboration.

For Hoshimachi Suisei, the announcement is also part of a currently busy music schedule. Her new single "GUM & DROP" is not released until August 31; it was created in Los Angeles with international songwriters and producers.

K-Arena Yokohama as the shared concert venue

K-Arena Yokohama is a major concert venue for both artists and lifts the event well beyond a small collaboration format. The source has not yet mentioned a livestream or broadcast for viewers outside Japan.

The show is scheduled for Sunday, December 20, 2026. KAI-YOU does not provide further information in the current report on ticket tiers, entry times or possible international availability. What matters for now is the confirmation of the joint concert along with its date, venue and key visual.