Over the Rainbow (オーバーザレインボー^?) is the debut Japanese album of South Korean girl group Rainbow, and their first full album overall. It was released on March 28, 2012 in Japan under Universal Sigma. The album was released in two versions, a CD & DVD Edition and a regular CD Edition. It was preceded by the singles "A", "Mach" and first original Japanese single "Gonna Gonna Go!". The album will be re-released in December 12, 2012 in three different editions.

The album was released in two different editions: CD & DVD Edition and the Regular CD Edition.

The CD & DVD Edition contains the CD album, and a DVD containing the "RAINBOW Premium Live at SHIBUYA PUBLIC HALL" show, including the songs "Mach", "Not Your Girl", "To Me", "Gossip Girl", and "A". Also includes a backstage video of the Premium Live show, and a special music video of "Mach", featuring more solo and group shots, also known as a "Close-Up" version from the original music video.

The CD Regular Edition of Over the Rainbow contains only the CD album itself.

The album will be re-released in three different editions: two CD+DVD editions and a 2CD only edition.

The CD+DVD editions will include the Over The Rainbow album and a special DVD: Type A will include all music videos of the group included on the albums and Type B will include performances of all Korean promotions tracks, "Gossip Girl", "Not Your Girl", "A", "Mach", "To Me" and "Sweet Dream". All performances are from the KBS' show Music Bank.

The CD only edition will include two CDs: the standard Over the Rainbow as CD 1 and a special Korean greatest hits on the CD 2, including tracks from the mini albums Gossip Girl and So Girls. This edition will include the Japanese song "Candy Girls!", theme song of the animated show Zoobles!, as bonus track of the CD 2.

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