This thread could've been posted here:
http://forums.animesuki.com/forumdisplay.php?f=12
I got recently started on the world's biggest pop group after the announcement of AKB0048 (which, of course, will be directed by Kawamori).
At the moment, thanks to a fellow living in Hong Kong, I'm going for Mayu. Songs? First nice one was River, followed by Heavy Rotation.