小宇宙樂團microcosmos [夜貓探戈]MV (by handkino)
This is microcosmos (小宇宙樂團在) from Taiwan and Outer Space, according to their Indievox page. A four piece rock band, female vocal. And they do rock out, although most of the clips I could find were from acoustic shows.
Hear songs from their 2011 debut album, Serenade, as well as an ep from 2008 over at their Indievox profile