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Hololive Production Turns 9 — Stamp Rally in Yokohama & Music Fireworks Festival Announced

August 23, 2026

Source: ホロライブプロダクション9周年記念！『hololive Dreams』をテーマとしたイベントが開催決定！ — PR TIMES

Cover Corp just dropped some huge news for Hololive fans: to celebrate Hololive Production's 9th anniversary, two major events are confirmed, both themed around the upcoming mobile game hololive Dreams.

🗾 Horocall Yokohama — City-Wide Stamp Rally (Sep 18 – Oct 9)

The second round of the "Horocall" local-promotion series takes over Yokohama's Minato Mirai district with seven participating talents:

  • Momosuzu Nene (宝鐘マリン)
  • Hoshimachi Suisei (雪花ラミィ)
  • Oomori Porca (尾丸ポルカ)
  • Kobayashi Koyori (博衣こより)
  • Kobo Kanaeru (こぼ・かなえる)
  • Hakos Baelz (ハコス・ベールズ)
  • Ichijou Ririka (一条莉々華)

Participating venues include Yokohama World Porters, Minato Mirai Tokyu Square, Yokohama Port Museum / Maru Maru Memorial Park, GiGO Yokohama Chinatown, and The Wharf House Yamashita Park. Activities include:

  • A stamp rally across city locations
  • Limited-only voices you can only hear at the venues
  • Collaboration drinks and original goods with new artwork
  • Life-sized panels of the participating talents

🎆 Horo-Hanaabi 2026 — Music & Fireworks Spectacular (Oct 15)

Last year's event at Makuhari was a massive hit — this year it's leveling up for the 9th anniversary. Held at Saitama Super Arena, the show will feature Hololive's music backed by fireworks and drone performances, creating what Cover is calling a "one-of-a-kind memorial show."

Why It Matters

The Hololive Dreams game announcement itself is the anchor here — Cover is clearly going all-in on making the franchise's next chapter feel like a celebration. A stamp rally with 7 talents across a major city district, plus a stadium-level fireworks concert with drones? That's Cover flexing its production muscle.

If you're in the Kanto area, both events are within reach. Horo-Hanaabi at Saitama Super Arena is going to be the Hololive event of fall 2026. I'd be keeping an eye out for ticket info.

Hololive Production launched in 2017 and now boasts over 90 million total YouTube subscribers across all channels — the world's largest VTuber agency. The 9th anniversary season looks like it's going to be a big one.