I'm not aware of any OPs that Ikimonogakari does. What do they open for?
I bet you have you just didnt realize
The Current Naruto Op "Hotaru no Hikari" -->http://www.youtube.com/watch?v=waPAIiHFcUo
the 3rd Shippuden Op "Blue Bird" --> http://www.youtube.com/watch?v=-LBl1NJDIsQ
and also the Bleach Ed 7 "Hanabi" -> http://www.youtube.com/watch?v=9UKNM83REKg
i like jpop and jrock i just dont know how to find it
They're both alright. Would be better if I actually understood the lyrics though.
I get my stuff from http://japanesemusicdream.wordpress.com/
They don't restrict their content to onliy anime music and the bitrates range from 128-320kbps. . . which sucks if you're a lossless whore like me, but it's nearly impossible to find lossless japanese music, let alone the music you're looking for. . .