Bringing this over out of the Mayu thread into more general...
Fan vid - March 11, 2013 - Anniversary performances at the disaster areas - Onagawa-cho
Watanabe Mayu, Iwasa Misaki, Shimazaki Haruka, Fujie Reina, Kojima Natsuki, Kodama Haruka
This person got a great view, and excellent video quality, shame it's just the intro.
On the same channel I found these vids of other events:
福島県新地町 2012.11.24
(Takahashi Juri, Yokoyama Yui, Nito Moeno, Iwata Karen, Kikuchi Ayaka, Oshima Ryoka)
(9 parts)
宮城県鮎川 2012.10.08
(Oshima Yuko, Umeda Ayaka, Shimada Haruka, Akimoto Sayaka, Abe Maria, Muto Tomu)
(9 parts)
女川運動公園 2012.05.27
(Kojima Haruna, Umeda Ayaka, Kitahara Rie, Kashiwagi Yuki, Masuda Yuka, Kawaei Rina, Sugamoto Yuko)
(9 parts)
http://www.youtube.com/user/kouki0113/videos?view=0&flow=grid