allmusic : This has got to be the GREATEST music website in existence. They have music reviews, interviews, biographies, and complete discographies for practically EVERY musician. It doesn't matter where they come from, so yes: there
are Japanese artists on the site, as well as French, Italian, German, etc. And the artists all have varying degrees of fame: they have super famous artists
(like Green Day and Lil' Wayne), as well as more underground artists
(such as Maxeen and Afroman).
And when I say this site has a complete discography, I mean it's complete. Aside from track listings and MP3 samples, the site also lists the record label, release date, and catalogue number for each album/single! It's hard to find that information for a non-Asian CD!! (^^) I use this site everytime an artist does a cover/tribute song, and I'm sure I'll be using them again in the future.
I highly recommend them to everyone.