Kokia is a Japanese singer-songwriter from Tokyo. She is mostly associated with games and anime soundtracks; having appeared in eight different game/anime soundtracks to date. Kokia has an extremely talented voice - she even held a long-tone opera note for a little over 29 seconds on national TV once. She is most well-known in Hong Kong and Taiwan for her song Arigatou..., which became so popular it was even covered by star Sammi Cheng. Her biggest hit in Japan was the single The Power of Smile / Remember the Kiss, which reached #15 on Oricon charts. (Source: Wikipedia)