GREEN / Days

"Days/Green" is the forty-fourth single (forty-fifth overall) by Hamasaki Ayumi, released on December 17, 2008. In addition to the A-sides "Days" and "Green", the single contains re-recorded versions of Hamasaki's songs "Love ~Destiny~" and "To Be". The single became Hamasaki's 31st single to reach number one on the Oricon and 19th consecutive overall.

The single is certified Gold for shipment of 100,000 copies.

Release and packaging
"Green", one of the A-sides from the single, was released through online music store Dwango and Recochoku. "Green" was used in an advertisement for Panasonic. This single was released in two versions: "Days/Green" contains an updated "Love: Destiny". "Green/Days" contains an updated "To Be". Besides the B-sides, there is no difference in the two versions of the CDs other than the track order. However, the DVD of "Days/Green" contains the making of shot of the "Days" video, and the DVD of "Green/Days" contains the making of shot of the Green PV. Each version of the single was released in CD+DVD and CD-only formats, both having slightly different cover jackets. The first press of the two CD+DVD versions was packaged in a vertically long casing, similar to the first press editions of Ayumi Hamasaki's previous single "Mirrorcle World". Some online retailers included a B2 size poster of the "Days/Green" CD+DVD cover for all versions of the single.

Commercial and promotional videos
The music videos for "Green" and "Days" were shot during a tour stop in Shanghai, China. "Green" premiered on November 26, 2008 on MTV Japan. The music video depicts Hamasaki as a nightclub singer in 1930s Shanghai, styled after the Ang Lee film Lust, Lust, Caution. "Days" was Hamasaki's first music video to be shot in anamorphic 16:9 widescreen. Retailer Peach John sold a limited-edition replica of the outfit Hamasaki wore in the "Days" music video.