this links are a Dragon Ball Z videos

I-ku-sa : http://www.animelyrics.com/anime/dbz/dbzikusa.htm
Youtube:

Hero (kimi ga hero) : http://www.animelyrics.com/anime/dbz/dbzhero.htm
Youtube:

GIRI GIRI -Sekai Kyokugen- : http://www.animelyrics.com/anime/dbz/dbzgsk.htm
Youtube: