Well I don't listen to many J pop groups, but I listen to a few soloists and I recommend new artists that debuted in 2014, it's always fresh to listen to brand new artists. I recommed MACO, Ohara Sakurako, chay, Nishiuchi Mariya and Yasuda Rei. My favourites are MACO and Ohara Sakurako.
I need help, how can I register to Generasia? I would like to contribute with more info on J-pop there, but it only shows log in and not create new account. Weird...I hope someone can help me.