Pl@net sphere, officially スフィア, is a Japanese idol unit consisting of Minako Kotobuki, Ayahi Takagaki, Haruka Tomatsu, and Aki Toyosaki (寿美菜子, 高垣彩陽, 戸松遥, and 豊崎愛生), four seiyuus with Sony's Ray'n agency.
The group debuted in April 2009 releasing their first single "Future Stream". As all four are voice actresses, their music is frequently featured as tie-ins to a variety of anime series.
|2||Future Stream||2,364 listeners|
|3||MOON SIGNAL||1,985 listeners|
|4||Super Noisy Nova||1,923 listeners|
|5||Now loading...SKY!!||1,784 listeners|
|6||HIGH POWERED||1,524 listeners|
|7||Play on youtube||Non stop road||1,516 listeners|
|9||Dangerous girls||1,214 listeners|
|10||Neo Eden||1,213 listeners|