Japan's music sensation: a band chosen by its fans

FILE - In this June 6, 2012 file photo, an image of Japan’s all-girl pop idol group AKB48 member Yuko Oshima waving at fans is shown on the screen after she won the annual AKB48 popularity poll in Tokyo. More than 60 girls and young women, split into four teams, make up what is arguably Japan's most popular pop group. It performs almost every day, has spawned affiliate groups across the country and has recently given rise to sister mega-groups in China and Indonesia. (AP Photo/Shizuo Kambayashi, File)