This 2009 single captured Oku at a prolific moment in her career, offering a mid-tempo, piano-centric ballad that demonstrated her consistent appeal within the Japanese pop landscape.
- The single "Birthday" was released on July 15, 2009, by PONY CANYON INC.
- It was included on her 2009 album of the same name.
- The song features Oku's signature piano accompaniment and introspective lyrical style.
Hanako Oku is a Japanese pop singer-songwriter from Kanagawa Prefecture. She is best known for her piano-driven ballads and lyrical honesty.
Tracklist
