These are just a few examples of the robots in music that I remember well, and some of them before my time as an adult.  Queen's "News of the World" album cover is the one I remember as being the most striking, as the robot appears to have accidentally hurt someone.

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Pink Floyd Wish You Were Here (1975)	Alan Parson's Project I-Robot (1977)	Queen News of the World (1977)
Sigue Sigue Sputnik Flaunt It (1986)	Powerpuff Girls spoof of album on left, from Powerpuff@Japanese click above to visit their site	Styx Kilroy Was Here (Mr. Roboto) (1983)
Freddie Mercury Love Kills from Giorgio Moroder's Metropolis (1984) Demo Copy