The Nerves, One Way Ticket (compiled 2008, Rhapsody)
Buzzcocks, A Different Kind of Tension (1979, Rhapsody)
I mean, it is inarguable that "Hanging on the Telephone" is the perfect pop song, even more perfect with Jack Lee's tender desperation than with Debbie Harry's incredulousness in Blondie's cover version a few years later (like you would leave 1978 Debbie Harry hanging), but "When You Find Out" by his fellow Nerve and future Plimsoul Peter Case is a keeper too.
The Nerves, "When You Find Out"
If you were wondering what is the other perfect pop song in the world, it is this one.
Buzzcocks, "You Say You Don't Love Me"