Not just Pete Shelley
Other 80's pop stars that put Spectrum games on B-sides include:
Shakin' Stevens:
- http://www.worldofspectrum.org/infoseekid.cgi?id=0004437
The Thomson Twins:
- http://www.worldofspectrum.org/infoseekid.cgi?id=0007104
Chris Sievey:
- http://www.worldofspectrum.org/infoseekid.cgi?id=0001815