http://www.video2mp3.net/view/YouTube/9HR1ea9EdBE/d4ff12a7ff95cc74f2efdd49543f3b51/ (if the link works, right click "Download MP3 and click "Save link as")
or
http://www.esnips.com/doc/ac08f873-e858-4b14-857c-49a5de40ac98/Asian-Kung-Fu-Generation---Road-Movie (I think you're going to have their program to download songs from there)