Question: Who wrote the single, "Talkin' 2 Myself," which pushed back the release date of BoA's "Love Letter?"
Context: Ayumi Hamasaki (浜崎 あゆみ , Hamasaki Ayumi , born October 2, 1978) is a Japanese recording artist, lyricist, model, and actress.  Through her entire career, she has written all her lyrical content, produced her own music, and has sometimes co-composed her music. Let Me Feel Your Power is the tenth live album by British heavy metal band Saxon.  The title comes from the third track on their seventeenth studio album, The Inner Sanctum.  Originally, it was to be released on 23 September 2016, but the release date was pushed back to 7 October 2016.  In the US, the release date was 28 October. "Be with Me" is the debut single co-written and performed by R&B singer–songwriter J. Holiday released off of his debut album "Back of My Lac'".  It was to be released early 2007, following the single.  However, due to the single failing to top the charts peaking at #83 on the Hot R&B/Hip-Hop Songs and completely missing the "Billboard" Hot 100 all together, the album was pushed back to an unspecified fall release date, until finally being released October 2, 2007, following the success of his second single titled "Bed".  The single's promotion fell through due to the merging of Capitol & Virgin Records, LeToya Luckett, Mims, Cherish, and Chingy had cancelled third singles, and Chingy was let go from the label, while J. Holiday's promotion for the song was also canceled. Jesus Price Supastar is the second studio album by rapper Sean Price, released on January 30, 2007 through Duck Down Records.  It was originally planned for release on September 19, 2006, then was pushed back to October 31, and was pushed back for a third time, to a final date in January 2007.  Duck Down CEO Dru-Ha stated, ""We all just decided together that the extra time would do us right for promotions and raising awareness."" Get Me Home is the second album from Australian singer Jade MacRae.  Originally scheduled for release on 5 November 2007, the release date was pushed back on numerous occasions but finally saw a release on 4 October 2008.  The album has new cover art, a slightly different track order and the addition of a new single "I Wanna Be in Love" compared to its initial scheduled release. Universal Mind Control is Common's eighth studio album.  Originally scheduled to be released on June 24, 2008 under the name "Invincible Summer", the release date was pushed back to September 30, 2008 due to Common filming "Wanted".  However, on September 10, 2008, it was announced that the title would be changed to "Universal Mind Control" and the release date was set for November 11, 2008.  Later, the release was pushed back to December 9, 2008. Live the Life is an album by Michael W. Smith.  One notable song on this album was "In My Arms Again," which Michael W. Smith wrote for the film "Titanic".  There were 26 songs written and completed for the album, whose release date was pushed back twice as Smith wasn't fully satisfied with the track list.  Along with the 12 songs which eventually made it on the album, the tracks "Greater Than We Understand" and "Evening Show" were released on the B-sides of the CD singles for "Live the Life" and "Love Me Good" respectively.  The remaining 12 songs appeared in some form on Smith's 1999 album This Is Your Time. Death to Analog is the first studio debut album from American rock band Julien-K, which was released on March 10, 2009 (the European/Digi-Pak release date being March 5, 2010).  Despite a number of delays, the album was confirmed to be released on February 17, 2009 to coincide with the "Death of Analog" television.  However the album's release date was pushed back to March 10. "Love Letter" is BoA's 23rd single.  Alongside the title track are two B-sides: "Beautiful Flowers" and "Diamond Heart".  The original release date for this single was September 19, 2007 but it was pushed back a week to 26 September after the news of Ayumi Hamasaki's latest single, "Talkin' 2 Myself", was scheduled for release the same week. Private Affair is the eighth studio album of Filipino singer Kyla, released in the Philippines on November 30, 2010 by PolyEast Records.  After successfully promoting her albums in Malaysia and Indonesia, it was announced that Kyla was planning to release a new album with her label in early 2010.  Originally slated for a May 2010 release, the album's release date was pushed back to September.  Due to heightened international activity, it was, again, pushed back to November 2010.
Answer: Ayumi Hamasaki