Etsuko Yakushimaru

Etsuko Yakushimaru (やくしまるえつこ) is the stage name of a Japanese female J-pop singer. She is known for her solo works including theme songs in several anime series, as well as being the lead vocal of the rock band http://www.last.fm/music/相対性理論 (Sotaisei Riron) Previously, she had not disclosed her face to the public, until the artist and her band was featured in the July 2009 edition of Studio Voice magazine.[1] She also goes by the alias of Tika α (ティカ・α?) when credited for lyrics and composing. [2]