You requested the URL:
http://nicemice.net/amc/music/songs-wanted/smap/oira-no-jinsei-nopperabo/clip.mp3
The web server for the nicemice.net domain is www.nicemice.net. You probably wanted the URL:
http://www.nicemice.net/amc/music/songs-wanted/smap/oira-no-jinsei-nopperabo/clip.mp3