Aki Toyosaki is a Japanese voice actress and singer, born on September 28, 1986, in Saitama, Japan. She is best known for her roles in various anime series, including Yui Hirasawa in K-On! and Mikako Satsukitane in Gurren Lagann. Toyosaki has gained popularity for her versatile voice and engaging performances. In addition to her voice acting career, Aki Toyosaki has released several singles and albums as a solo artist. She is affiliated with the talent agency Sony Music Artists and has participated in various radio shows and events, further showcasing her talents in the entertainment industry.