Recently I really got into j-pop, so during last 3-4 months I've been buying lots of Japanese discs.
FictionJunction/Yuki Kajiura live DVDs, AKB48, Ai Kawashima, Anri Kumaki, Minako Kawae, Saeko Chiba, Aya Hisakawa, Yoko Ishida, JYONGRI... - love'em What I love most about these is how they freely mix old and new sounds, and still retain classic song structure and themes, that got almost wiped from mainstream US/EU pop.
And what got me pointed towards it were VNs (and SHOGO:MAD that I played 20 years ago, and it had amazing opening ) .