Can someone suggest some good J-POP/J-ROCK groups/singers?

Question:

I love K-POP, but I'm learning Japanese. Can someone suggest some music for me to listen to?
Much appreciated! ^^

Answer:

here is a list of good jpop and jrock artists with the name of songs



Jpop

Yuya Matsushita -trust me
Utada - Simple and Clean
AKB48 - baby baby baby
Genki Rockets- Star Line
Hatsune Miku - World is mine

Jrock

UVERworld - D-technolife
FLOW - Remember
Fear and Loathing in Los Vegas - Jump Around
Back-on - restart
SCANDAL - Haruka
UxMishi - Akane
School Food Punishment - Light Prayer