Someone help me... need karaoke version of "Hair"

[shadowboy]

I am using this song (Hair, from the movie Hair) as my audition piece for wizard of oz, and I can't find a karaoke version of the movie version of the song, which I need to use cause it is waaaaaay better than the broadway/london recordings found on itunes. I searched Itunes store, but they only have it of the broadway version. Would it be possible to rip the vocals and video from this recording?
http://www.youtube.com/watch?v=7dyl0j3WU6Y

If not is there any other online digital music store that I could buy a karaoke version from?

Thanks for any help ~ shadowboy