Jet Bin Fever Oh my god, I THOUGHT that was her, but I wasn't sure. Onyanko club is so fucking depressing. They've also played "sailor-fuku wo nugasanaide" during some of the GCCX segments before, which was one of their biggest hits.
Oh, and that title translates to "Don't make me take off my sailor uniform" in case you were curious... yep.
Jet Bin Fever oh, and here are the lyrics to that song.