Shibasaki debuted in 2000, when she portrayed the cold, deadly and promiscuous Mitsuko Souma in the cult classic Battle Royale. Her acting career took off with this film and also raised her profile across East Asia. Shibasaki also won critical acclaim for her role as Tsubaki Sakurai in the 2001 film Go, which earned her several awards, including the Best Supporting Actress Award of Japanese Academy, the Hōchi Movie Award, the Kinema Junpō Award. Shibasaki has worked in numerous television shows, movies and commercials.
Shibasaki has two musical groups: Koh+ (with Masaharu Fukuyama) and Galaxias! (with Deco*27 and TeddyLoid). Shibasaki made her debut in the music industry in 2002 with her first single, "Trust My Feelings", but she became recognized for her second single, "Tsuki no Shizuku", which was used for the movie Yomigaeri.
Her song "Another World" was the Soundtrack of "Mirai Nikki - Another:World" (2011).
In 2013, Shibasaki made her "Hollywood debut" in 47 Ronin, a Keanu Reeves-led adaptation of the famous Chushingura story of samurai loyalty and revenge. The film is billed as the first ever English-language adaptation of the legend, based on historical events in the early 18th century. She will be starring alongside Hugh Jackman and Fan Bingbing in The Greatest Showman on Earth. In September 2016, she will play the main character Ii Naotora in the NHK Taiga drama TV series "Onna jôshu Naotora" which will broadcast in 2017. Before the film shoots, Shibasaki visited in August the grave of Naotora.
On June 2015 she released her first cover album "Kou Utau". In May 2016 Shibasaki announced that she will publish her second cover Album "Zoku Kou Utau".
