Remember the 15th anni. lottery prize of singing in the chorus of a song? [dwango.jp]

[truehappiness]

Looks like we finally know what song TA members got to be a part of. I wonder why it was never mentioned.

さらに、アルバム『A ONE』に収録されている書き下ろし新曲『The Show Must Go On』が「Samantha Thavasa ‐365日、毎日が記念日-TVCMソング」に決定したことが発表された。本曲は浜崎のオフィシャル・ファンクラブ”TeamAyu” の特典で当選した2名の会員がコーラスとして参加しているという特別な楽曲だ。

http://news.dwango.jp/?itemid=19311

The Show Must Go On features the two TA members that won the draw for the spot in the chorus of an Ayu track.

Now that I think about it, this should have been obvious. I wonder if they are the voices that people think are a little screechy.

Originally Posted by Coelacanth

Looks like they're credited in the album booklet:

Additional B.G. Chorus : Akiko Fukushima, Mai Ishiguro