Hanako Oku

Hanako Oku (奥華子, Oku Hanako, born March 20, 1978, in Funabashi, Chiba, Japan) is a pop singer famous in her native Japan for her piano ballads. She rose to fame after performing the end-title track for the Madhouse film The Girl Who Leapt Through Time in 2006. She was signed to a major record label the preceding year.