Love Will Tear Us Apart - Joy Division (1980)
I've never really considered post-punk a genre (Wouldn't it be everything released since The Sex Pistols broke up?). However, let's play devil's advocate. If the movement existed, this would be its anthem. New Order would last much longer than this short-lived treasure, but New Order didn't have Ian Curtis. Part Jim Morrison, part vampire, his voice was a vessel of pain that has not been equaled since his suicide the same year this legendary cut was released. Pain never made you want to dance so bad. LCD Soundsystem would never have existed without this classic.
This song begs to be covered. Many have given in to its wishes.