Hatsune Okumura (奥村 初音, Okumura Hatsune) (born October 11, 1990) is a Japanese singer-songwriter signed to Avex Trax. Born and raised in Osaka, Okumura started to write lyrics and compose music at the age of five after attending music competitions. On September 5, 2007, she debuted with the single "Koi, Hanabi". In 2009, Okumura started to perform mononymously as Hatsune (初音).
Arigatou (ありがとう, Thank You) is Hatsune Okumura's debut studio album.
Arriving a year after her debut, Arigatou (ありがとう, Thank You) features her first three singles, Koi, Hanabi (恋、花火, Love, Fireworks), Suna (砂, Sand), Honto wa ne (ホントはね, Really?) and a b-side, Natsuiro no Koi (夏色の恋, Summer Color Of Love), with eight new tracks. It doesn't feature her digital single, Sotsugyou ~Mata, Aou ne~ (卒業~また、会おうね~, Graduation ~Let's Meet Again~)