X JAPAN for ever! :) even if it has become... well you know, but damn it, they (yoshiki) can do whatever they like, they have earned that privilege.
Next to them: Moi dix Mois, MALICE MIZER, DOREMIDAN and the older KAT-TUN. They are my Top 5.
It still surprises me how popular OOR has become on the last years! I'm glad, they are great guys.
I have a HUGE list but for now:
Aikawa Nanase
Younha (I'm currently listening to her Japanese album)
Masami Okui
No Regret Life
Kouji Wada
Joe Inoue
Triplane
I need more J-Pop and J-Rock in my life....I've been listening to NEWS, Yamashita Tomohisa (solo), Gackt, One OK Rock, KAT-TUN...like I said, I need more variety!!
Ikimonogakari, One Ok Rock, Scandal, YUI, WISE, Monkey Magik, Kana Nishino, Nerd Head, Triceratops, AAA, Ayaka, Alan... I really could go on with who I like :)
The Back Horn, Sambomaster, Babymetal, Asian Kung-Fu Generation, Man with a Mission, Maximum the Hormone, Band-Maid, Last Alliance wish they had music from them on iTunes, One OK Rock.