Eiko Shimamiya, also called EIKO or PEKO, is a female J-pop singer and a former member of the production group I've Sound. She is best known for singing the opening themes of the anime series Higurashi no Naku Koro ni. Eiko also handles a school called Shimamiya Size in Sapporo. Some of her former students include I've Sound singers Mami Kawada, Kotoko and Kaori Utatsuki. She announced on May 10, 2010 via Twitter that she was diagnosed with thyroid cancer. Her Perfect World Live Tour, which was...
