"Dame/Crazy Rainbow" is Tackey & Tsubasa's eighth single, and their first single for 2007. First a-side song, "Dame", is being used as the commercial theme song for the music service sites "Joy Sound", "dwango.jp", and "nusic.jp". The second a-side song, "Crazy Rainbow", was used as the eighth opening theme song for the anime One Piece.
As with their other singles, "Dame/Crazy Rainbow" was released in three different versions, each version coming with a different cover, along with different limited bonus material. Version A of the CD included a limited edition DVD with music clips of "Dame" and "Crazy Rainbow", and choreography lessons for the song "Dame". The B Version of the single included a limited DVD with the eighth opening theme song of "One Piece", a twelve-page photo booklet, and a "One Piece" sticker. The regular