One female artist I just stumbled about is KIRA.
She's an urban, dancehall and reggea/reaggeaton inspired artist (similar to MUNEHIRO) and just released her debut album "Listener Killer" in February this year. She's officially active since 2012, most collabo songs from earlier are on the album (she started with those like most of the artists from this genre).
If you like upbeat and dance with a strong voice, check her out.
She's currently nominated as Next Break Artist at the VMAJs with her PV for Nadeshiko SOUL.
Nadeshiko SOUL short version
JEALOUSY full PV
Listener Killer album preview
Her official website:
http://kiranomahou.net/
Her blog:
http://ameblo.jp/kirarhyy/
If somebody wants the album, I can upload.