A few years ago Klaatu did a live one-off gig and they performed that song without the vocal effects. I have a copy and it is great.
In a message dated 2/3/2010 7:25:56 P.M. Eastern Standard Time, ecclesreinson@rogers.com writes:
It needs the right vocal. I tried it using a talk box and some robot vocal effects, but it sounded like shit. Klaatu used an artificial larynx for the original messed-up vocals. Even if I did the vocal right, all I'd have is an fair cover version of a strange tune by an obsure old band, so I'm not motivated to finish it.