Give me a list of the great synth-pop artists and a song for each that I might not have heard.

Sure, here is a short list of Synth-pop artists with songs that you may not have heard yet:
- Blondie – Heart Of Glass (1978)
- Kraftwerk – The Model (1978)
- Gary Numan – Cars (1979)
- OMD – Electricity (1979)
- John Foxx – Underpass (1980).