Shibasaki made her debut in the music industry in 2002 with her first single Trust My Feelings, but she became recognised for her second single Tsuki no shizuku which was used for the movie Yomigaeri. The song was one of the most successful J-Pop hits of 2003. Her first album peaked at number 2 and spent 68 weeks on the Oricon charts. Her second album was considered to be a commercial disappointment compared to her first album, lasting 9 weeks and reaching a peak position of #5.[1]