aka the Yui Koike group... well obviously many know here but not so many know about he doing music (is all good music imo)
They started in 2009 as a duo with members Kanaki Jyun (now former member) and Koike Yui as a duo but in the same year Jyun retires and so 2 more girls are added, Kusano Hinako and Wada Erika, to form a trio... so at first they only did live shows and some hard promotion on the webs and so they gained popularity and started to appear in radio shows as guests and more important venues like the Tokio Idol Festival 2010.
One interesting part about this group is that the girls can do their own works as models or actress (Yui Koike is the best example)
So now they are part of Sony music and alraedy released some singles under they wing. Their last one was selected as ending theme for teh anime Beelzebuh
Official stuffhttp://www.tomapai.jp/http://www.myspace.com/tomapaihttp://www.youtube.com/user/TomapaiTomapai ChannelDiscographyAlbum
[2009.04.04] Life is Beautiful (Indies)
Singles
[2010.05.15] Captain wa Kimi da! (キャプテンは君だ!) (Indies)
[2011.03.09] Tabidachi Transfer (旅立ちトランスファー)
[2011.08.17] Nanairo☆Namida (なないろ☆ナミダ)
[2011.12.07] Jingle Girl Joui Jidai (ジングルガール上位時代)
Compilations / Others
[2011.08.10] ZONE Tribute ~Kimi ga Kureta Mono~ (#2 Yume no Kakera...)
DVD
[2010.08.25] BLUE SPLASH
btw... Yui Koike's thread
http://forum.jphip.com/index.php?topic=20471.0