Over the Rainbow (stylized in all caps) is the tenth studio album by Japanese singer and songwriter Mai Kuraki.

[4] Some of the songs on Over the Rainbow are themed about the 2011 Tōhoku earthquake and tsunami, from which Kuraki has continuously contributed to the reconstruction in several ways.

The third single from the album, "Your Best Friend" was released in October 2011 and served as the theme song to the Japanese animated television series Case Closed.

The song served as the Japanese television drama series Kiri ni Sumu Akuma and peaked at number seven in Japan.

"Brave Your Heart", which features a Chinese actor Alex Ru served as the theme song to the Japanese drama movie Ashita ni Kakeru Hashi.

EmbraceYou, a web magazine (webzine) based in New York City, stated that "every track (in this album) sells in its own unique way.

"[5] FM 139.7, a blogsite dedicated to East Asian pop culture, described Over the Rainbow as "the final stage of Kuraki's evolution from R&B to J-pop, while maintaining some of her earlier youthful R&B momentum.