Compilation album to commemorate the 15th anniversary of Hikaru Utada's music career features covers of her songs by lots of great artists such as AI, Yosui Inoue, Ohashi Trio, Yasuyuki Okamura, Miliyah Kato, KIRINJI, Ringo Sheena, Jimmy Jam & Terry Lewis feat. Peabo Bryson, Tofubeats feat. BONNIE PINK, Hanaregumi, Ayumi Hamasaki, Kazuya Yoshii, and LOVE PSYCHEDELICO.