Debut single from Johnny's next generation group Hey! Say! Jump featuring the largest ever, youngest ever group cast for a Johnny's act! Group includes Yuto Nakajima, Ryosuke Yamada, Yuri Chinen, Ryutaro Morimoto, and Keito Okamoto of last year's Hey! Say! 7 plus Daiki Arioka, Yuya Takaki, Kei Ino, Hikaru Yaotome, and Kota Yabu bringing the average age of the group to 15 and with a total of ten members! Includes the postitive, powerful debut track "Ultra Music Power" (image song to "World Cup Volleyball"). Includes two songs total. Limited edition includes bonus DVD with music video and making-of footage plus alternate jacket artwork. *The DVD disc is encoded for region 2 (Japan, Europe, and Middle East), and no subtitles are included.