Recommended J-Rock GIRLS?

[sxesven]

Aiko isn't much j-rock, sorry. In any case, Shiina Ringo is brilliant, and most definitely rock. You could also try out Cocco, and Fra-Foa (band with female lead). There's some more though, however, I'm fond of these three, so there you go.

If you're looking more into the extremes of J-rock, you might want to try Anadorei (all-fem-punk-band) and Melt-Banana (female fronted psychohardcorepunk?).