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Unhappy Birthday Kobun

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Unhappy Birthday Kobun

Summary

Unhappy Birthday Kobun is a single[1]. It ranks in the top 3% of single entities by monthly Wikipedia readership (120 views/month).[2]

Key Facts

  • Unhappy Birthday Kobun's instance of is recorded as single[3].
  • Unhappy Birthday Kobun's genre is J-pop[4].
  • Unhappy Birthday Kobun followed Make or Break[5].
  • Unhappy Birthday Kobun was performed by Sakurazaka46[6].
  • Unhappy Birthday Kobun's record label is recorded as Sony Music[7].
  • Unhappy Birthday Kobun's Commons category is recorded as Unhappy Birthday Kobun[8].
  • Unhappy Birthday Kobun's language of work or name is recorded as Japanese[9].
  • Unhappy Birthday Kobun was released on October 29, 2025[10].
  • Unhappy Birthday Kobun's title is recorded as {'lang': 'ja', 'text': 'Unhappy birthday構文'}[11].
  • Unhappy Birthday Kobun's announcement date is recorded as August 24, 2025[12].

Product Details

The following facts are restated verbatim from public-domain and CC0 open-data sources — every line is independently verifiable against the named source's catalog.

MusicBrainz — CC0 open music encyclopedia

  • Release type: Single[13]

  • First release date: 2025-10-29[14]

  • MusicBrainz ID: 53e8ede2-bb61-464a-bd0d-6f5be1abf5df[15]

Body

Authorship and Creation

Unhappy Birthday Kobun was performed by Sakurazaka46[6].

Publication

Unhappy Birthday Kobun was released on October 29, 2025[10]. Its language of work or name is recorded as Japanese[9]. Its genre is J-pop[4].

Adaptations and Inspiration

Unhappy Birthday Kobun followed Make or Break[5].

Why It Matters

Unhappy Birthday Kobun ranks in the top 3% of single entities by monthly Wikipedia readership (120 views/month).[2] It is known by 4 alternative names across languages and contexts.[16]

Related Entities

Sony Music

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . sakurazaka46.com. sakurazaka46.com. Provenance: wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . sakurazaka46.com. sakurazaka46.com. Provenance: wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . sakurazaka46.com. sakurazaka46.com. Provenance: wikidata.org.
  9. [11] ↑ . sakurazaka46.com. sakurazaka46.com. Provenance: wikidata.org.
  10. [12] ↑ . sakurazaka46.com. sakurazaka46.com. Provenance: wikidata.org.

Product details (FDA / USDA / NHTSA public-domain catalog data)

  1. [13] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  2. [14] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  3. [15] ↑ . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [16] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Unhappy Birthday Kobun. Retrieved May 3, 2026, from https://4ort.xyz/entity/unhappy-birthday-kobun
MLA “Unhappy Birthday Kobun.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/unhappy-birthday-kobun.
BibTeX @misc{4ortxyz_unhappy-birthday-kobun_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Unhappy Birthday Kobun}}, year = {2026}, url = {https://4ort.xyz/entity/unhappy-birthday-kobun}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Unhappy Birthday Kobun — https://4ort.xyz/entity/unhappy-birthday-kobun (retrieved 2026-05-03)

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