Best & USA
album by BoA

Best & USA is the third Japanese compilation album by South Korean recording artist BoA. A Japanese issue coinciding with the release of her American first album, BoA, it contains the American album (USA) as well as a compilation of Japanese singles (Best). It was released on March 18, 2009.
Best & USA was better received in Japan than BoA had been in the US, reaching number two on the Oricon weekly album charts. It sold over 100,000 copies and was certified Gold by the Recording Industry Association of Japan. The Japanese songs were also released separately as Best II on April 15, 2009.
History
In 2008, after successfully breaking into the Japanese market, BoA and her label SM Entertainment set out to record new material to crack the lucrative U.S. pop market. The label founded a new American branch, SM Entertainment USA, and BoA recorded a new album of English material to be promoted in the United States, ultimately titled BoA and released on March 17, 2009.
Coinciding with the American release, BoA also released Best & USA in Japan, including both the new album and a compilation of her Japanese singles. The album was released in several formats mixing the Japanese singles with the new material. BoA promoted Best & USA with appearances in Japan amid her promotions in the United States.
This brief starts where responsible research should: with the source description of “Best & USA” as album by BoA. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the arts & letters register because the source frames it as album by BoA. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Object files, edition statements, performance records and contemporary criticism preserve different stages of the work’s history. The source revision retrieved here is dated Aug 2, 2026. The linked authority identifier is Q485439. The first chronological checks are 2009 and 2008.
Later fame can flatten the distinction between original context, subsequent adaptation and institutional collecting history. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Separate the work, its editions or performances, and its later reception. Catalogue records, publication histories and object files often preserve different parts of that story.
- Identifying works and editions
- Tracing reception history
- Finding collection records
The original object or edition, catalogue raisonné, performance record, rights file and holding institution.
Three-step research path
- Establish the record: confirm the title “Best & USA”, its source revision and the description used here.
- Expand the search: follow Best & USA primary sources, Best & USA archive and Best research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Best & USA”?
- Where is authorship, date or provenance documented?
- Which edition, object, performance or recording is being described?
Search terms from this dossier
This entry incorporates text from “Best & USA” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.