I enjoy the song "Lala", although I don't consider it Lee Dorsey's finest song (it's not as silly and repetitive as Oliver Morgan's "Who Shot the Lala?"). It does represent the heyday of New Orleans R&B and displays Alan Toussaint's musical and production influence.

I also like "I Can See Clearly Now" by Johnny Nash -- one of the few reggae hits. The only other one I can think of is the one by Desmond Dekker.

Among popular artists, any song by Queen incites my gag reflex. I'd include Billy Joel, the Bee Gees and Duran Duran as popular artists that have created unlistenable bodies of work. Of course Billy Joel, the Bee Gees and Queen are all in the Rock and Roll hall of fame, so what do I know?