Will post what happened during the SolaFes!
I saw an ameblo post from fan...and I kinda machine translated it, therefore, I will give you a short outline of what happened (note: this is from what I understand...please bear with me)
-DJ MANA, or Manami Yamaguchi, kick things up as the starter.
-Rina Rukawa was next, wearing her costumes from her solo album "17" (correct me if I am wrong)
-Rin Sakuragi was next. According to the blog, the author was happy to see Rin in great spirits after her "Sick Leave" during her Muscats tenure.
-Sho Nishino was next in a kimono (wil show you the pic later)
-Airi hyped the audience with her performance and some of her comedy prowess. She performed some of her songs, including "All Of Me".
-Tokyo CLEARs was next performing their songs.
-Yuma-chin wowed the crowd with her guitar solos, including her rendition of "Born this way".
-Yuma-chin and Airi belt their voices out with their duet of "Let it go"
-Aoi thanked the crowd who are in the concert.
I didn't see anything about Through SKILLS' performance...but yeah, the blog ended up with a request for a part 2...
Despite of the bad weather, SolaFes was a huge success!
(Pic from Rina's Twitter Account)

SOURCE:
http://s.ameblo.jp/mascuts/entry-11935124060.html?timestamp=1412550174 (kindly replace the "s" because it is for the smartphone version)