Yuko Oshima is a Japanese actress and former member of Japanese idol girl group AKB48, of which she was the captain of Team K. She was also a member of the AKB48 subunit Not Yet. In addition to the singles that involved the rock-paper-scissors tournaments, she sang on the title tracks for all of AKB48's singles since "Aitakatta" in October 2006. She placed among the top two of the annual AKB48 general elections from 2009 to 2013. Oshima is currently represented with Ohta Production.
Oshima at Yamaha Tricity launching event, on July 1, 2014
AKB48 is a Japanese idol musical girl group named after the Akihabara area in Tokyo, where the group's theater is located. AKB48 has sold more records than any other female musical act in Japanese history. AKB48's producer, Yasushi Akimoto, wanted to form a girl group with its own theater and performing daily so fans could always see them live. This "idols you can meet" concept includes teams which can rotate performances and perform simultaneously at several events and "handshake" events, where fans can meet group members. Akimoto has expanded the AKB48 concept to several girl groups within Japan, and internationally in Mainland China, Indonesia, Thailand, Taiwan, and Philippines.
AKB48 performing at the Nokia Theater (now Peacock Theater) in Los Angeles, California in July 2010
AKB48 Theater in Akihabara, Tokyo
AKB48 preparing for its debut on March 26, 2006
AKB48 live at Japan Expo 2009 (Paris)