Aw, you poor soul. Avril is not rock, she is pop. She couldn't be rock if she tried.
Well... I like all forms of rock and heavy metal. I like some Jpop and much of Jrock. True JROCKER a heart!!
Maximum the Hormone is my favourite Japanese band. Other things Japanese include: Chieko Kawabe, Halcali, YUI, (most recently) Vocaloid, Gackt etc.
I love Coheed and Cambria, Bullet for my Valentine, Slipknot, Korn, Disturbed, Flyleaf, Seether, AC/DC, etc.
Sometimes I'll randomly like a song not depending on what band/artist proforms it. I have extreme dislike for country and rap. Hatred even.