Fourze song "Bounce Back" as a part of the group SoutherN.
http://www.animenewsnetwork.com/interest/2012-09-10/minami-kuribayashi-ayami-to-perform-new-total-eclipse-themes
http://www.animenewsnetwork.com/interest/2012-07-29/minami-kuribayashi-returns-to-sing-2nd-medaka-box-opening