Hikaru no Go is not an artist. Please fix your tags.
The original soundtracks were composed by Megumi Wakakusa.
1st OP “Get Over” is by dream 2nd OP “I’ll be the one” is by HΛL 3rd OP “Fantasy” is by Nana Katase
1st ED ボクらの冒険 (Bokura no Bouken) is by Kids Alive
2nd ED ヒトミノチカラ (Hitomi no Chikara) is by Arisa Mizuki
3rd ED SINCERELY ever dream is by dream
4th ED Days is by shela
5th ED MUSIC IS MY THING is by dream
“everlasting snow”, the ending to the 2004 special episode, is by dream
