The six hundred and fortieth album: #640 Madonna - Like A Prayer

While the Queen of Pop has some proper 80s pop songs on this album - Cherish for one - there are also a lot deeper songs in there. The titular Like A Prayer has a lot of subtext that give it a few different readings, while Promise To Try feels like a really sensitive and raw ballad. A lot of them still work these days, and the bigger tracks are probably more timeless than what happened to most pop of the era.