I added a music player (I know Apocalyptica isn't Japanese, but I just couldn't resist). I also found out that I cannot change the order of the playlist withougt making a whole new playlist =\ Which made me somewhat sad because they're just in the order I searched them...
Anyways...Most people that are in to Japanese music like it because it was the opening/ending theme for an anime they watched...Some people go a little farther, while others actually heard the music first and got into anime later (which would be me - lol) :)
For my lack of knowing what to write in this post, I shall just be random - so bear with me, please?
Songs from animes (that I have seen and actually remember):
Black Butler (Kuroshitsuji)
- Monochrome no Kiss - SID (first opening theme)
Black Cat
- Dia no Hana (Diamond Flower) - Yoriko (opening theme?)
Bleach
- Asterisk* - ORANGE RANGE (First opening theme)
- Life is Like a Boat - Rei Fu (First ending theme)
- DTechnoLife - UVERWORLD (second opening theme)
- Thank You! - Home Made Kazoku (second ending theme)
- Ichirin no Hana - High and Mighty Color (third opening theme)
- Houkiboshi (Abandoned Star) - Younha (third ending theme)
- Tonight, Tonight, Tonight - Beat Crusaders (fourth opening theme)
- Happy People - Skoop on Somebody (fourthending theme)
- Rolling Star - YUI (fifth opening theme)
- Life - YUI (fifth ending theme)
- ALONES - Aqua Timez (sixth opeing theme)
- My Peace - Sun Set Swich (sixth ending theme)
- After Dark - Asian Kung-fu Generation (seventh opening theme)
- Hanabi - Ikimono Gakari (seventh ending theme)
- Sen no Yoru wo Koete (Memories of a Nobody theme)
Blood+
- Aozora no Namida - Hitomi Takahashi (first opening theme)
- Colors of the Heart - UVERWorld (third opening theme)
Darker Than Black
- HOWLING - Abingdon Boys School (first opening theme)
- Kakusei Heroism~The Hero Without A Name~ - An Cafe (second opening theme)
Death Note
- The World - Nightmare (season one opening theme)
- Aluminia - Nightmare (season one ending theme)
- What's Up People?! - Maximum the Hormone (season two opening theme)
- Zetsubou Billy (Billy in Despair) - Maximum the Hormone (season two ending theme)
Elfen Lied
- Be Your Girl - Chieko Kawabe (ending theme)
FullMetal Alchemist
- Ready, Steady Go! - L'Arc~en~Ciel (opening theme)
- Kesenai Tsumi - Nana Kitade (ending theme)
FullMetal Alchemist: Brotherhood
- Again - YUI (first opening theme)
- Uso - SID (first ending theme)
Ghost Hunt
- Music by Toshiro Masuda
Ghost in the Shell S.A.C
- Inner Universe - Origa (opening theme)
Ghost in the Shell S.A.C 2nd Gig
- Rise - Origa (opening theme)
Gunslinger Girl
- Doll - Aoi Tada (ending theme)
Hell Girl (Jigoku Shoujo)
- Sakasama no Chou - SNoW (first opening theme)
InuYasha
- Change the World - V6 (opening theme)
- Every Heart - BoA (ending theme)
- {something Mori - I forgot the title} - Do As Infinity (D*A*I) (ending theme)
- Brand New World - V6 (ending theme)
Karas: The Prophecy (movie)
- Selenite - Rurutia (theme)
Kaketyo Hitman Reborn! (Reborn!)
- 88 - LM.C (?)
Naruto Shippuden
- Hero's Come Back - DJ Mitsu (first opening theme)
- Blue Bird - Ikimono Gakari (third opening theme)
- Deidara's Theme (no idea who it's by, but I have the MP3 if you would like it)
Ouran High School Host Club
- Kiss Kiss Fall In Love (?) - Chieko Kawabe (opening theme)
Romeo X Juliet
- Cyclone - 12012 (ending theme)
- Inori~You Raise Me Up - Lena Park (opening theme)
Shugo Chara!
- My Boy - Buono! (ending theme)
- Take It Easy - Buono! (ending theme)
- Omakase! Guardians - Guardians 4 (opening thing)
- Kokoro no Tamago - Buono! (?)
- Meikyuu Butterfly - Nana Mizuki (Hoshina, Utau)
- My Heartful Song - Nana Mizuki (Hoshina, Utau)
- Black Diamond - Nana Mizuki (Hoshina, Utau)
Vampire Knight
- Futatsu no Koudo to Akai Tsumi - On/Off (opening theme)
- Still Doll - Kanon Wakeshima (ending theme)
Vampire Knight~Guilty~ (aka-season two)
- Rinnnie~Rondo~ - On/Off (opening theme)
- Suna no Oshiro - Kanon Wakeshima (ending theme)
X (TV)
- eX Dream - Miyuji (first opening theme)
Yu-Gi-Oh! 5D'S
- Hyper Drive (english dub version opening theme)