There is more than one Mi
Mi was a norwegian punk band. they released 2 songs on the compilation record "Rattus Norvegicus"
Mi is a Japanese rock band consisting of 3 girls: Maika as the vocalist, Aya on the keyboard and Yuri playing bass. They write and compose their own music. Some of their songs, including "君だけを…"(Kimi Dake Wo/ Only you...) and "Aishiteru," are featured in the anime series Bokura Ga Ita.
Mi is an old Croatian rock group from the sixties.