Melissa performed by Porno Graffiti (eps 2-14; Ending Ep. 1; Japanese original release)

 Ready, Steady, Go! performed by L'arc~en~Ciel (eps 14-25; Japanese original release)

Undo performed by Cool Joke (eps 26-41;  Japanese original release)

Rewrite performed by ASIAN KUNG-FU GENERATION (eps 42-51; Japanese original release)

Ending Themes

Kesenai Tsumi (Indelible Sin)  performed by Nana Kitade (eps 2-13; Japanese original release)

Tobira no Mukou e (Beyond the Door)  performed by Yellow Generation (eps 14-25; Japanese original release)

Motherland performed by Crystal Kay (eps 26-41; Japanese original release)

I Will performed by Sowelu (eps 42-50; Japanese original release)

Conqueror of Shamballa (movie)

Opening Theme

Link performed by L'Arc~en~Ciel

Ending Theme

Lost Heaven performed by L'Arc~en~Ciel