20th Century brings the first original album in 25 years. The album features songs by Keiichi Sogabe (Sunny Day Service), Gusokumuz, Mitsume, Atsushi Yanaka (Tokyo Ska Paradise Orchestra), Tsuyoshi Kawakami (Tokyo Ska Paradise Orchestra), Keiichi Tomita, Mariya Takeuchi, Tomi Yo, YO-KING (Magokoro Brothers), Soichiro Yamauchi (Fuji Fabric) and more. The regular edition comes with a CD of live recording in the Billboard concert. Comes in digipack packaging.