Japonism is the fourteenth studio album of the Japanese idol group Arashi. The album was released on October 21, 2015 under their record label J Storm in three editions: a first press/limited edition, a Yoitoko limited edition, and a regular edition. The first press edition comes with an 84-page photo lyrics booklet and bonus DVD with the music video and making-of for the album's lead track, "Kokoro no Sora". The Yoitoko limited edition comes with a 32-page lyrics booklet, and the regular edition comes with a 36-page lyrics booklet. The album sold over 820,000 copies in its first week and topped the Oricon charts for two consecutive weeks. With more than 1,000,000 copies sold, the album was certified for Million by the Recording Industry Association of Japan (RIAJ). On December 23, 2015, Oricon ranked Japonism as the best-selling album of 2015 in Japan. On February 27, 2016, Japonism was awarded Album of the Year in the 2016 Japan Gold Disc Awards.

Arashi is a Japanese boy band consisting of five members formed under the Johnny & Associates talent agency. The members are Satoshi Ohno, Sho Sakurai, Masaki Aiba, Kazunari Ninomiya, and Jun Matsumoto. Arashi officially formed on September 15, 1999, in Honolulu, Hawaii, and made their debut CD on November 3, 1999. The group was initially signed to Pony Canyon and released one studio album and six singles—beginning with their 1999 eponymous debut single before moving to the Johnny's subsidiary label J Storm in 2001, which was initially set up for their succeeding releases. While their debut single sold close to a million copies, the group took a mixture of pop and alternate/contemporary approach to its music which attracted core followers, but subsequently faced commercially slow sales.