Ayu is to perform at Kishidan Banpaku/Expo 2012! (09/17/12)

[Andrenekoi]

@ExodusUK
Well, their outfits tend to be based on japanese school uniforms to fit the Bōsōzoku... I believe the Oedan outfit fits it.
http://en.wikipedia.org/wiki/B%C5%8Ds%C5%8Dzoku

Also:

Kishidan's hit songs "One Night Carnival" and "Zoku" were featured in Nintendo's Osu! Tatakae! Ouendan, and Moero! Nekketsu Rhythm Damashii Osu! Tatakae! Ouendan 2, respectively, which are games about ouendan (cheer squads). The song "One Night Carnival" (a cover version) is even used for a level that was inspired by one of Kishidan's live performances. Coincidentally, the characters wear long gakuran coats and dance like Kishidan. The dancing style is based on actual ouendan cheering routines, and long gakuran coats are often worn by ouendan cheer teams. It is possible that Kishidan's lively and powerful dance routines were inspired by the tradition of ouendan cheering, a subject that is unique to Japanese culture.

@truehappiness Well... the powerful look is a constant for a while now, isn't it? Or at least, everytime she is doing something rockish or upbeat.