The list just smacks of "Let's take popular, somewhat catchy songs and call them terrible!"
I mean "The Final Countdown" by Europe as the 27th worst song of all time? What?! Everyone I've ever met loves that song (mainly for the keyboard riff of course) and it goes down amazingly well every time I've seen Europe live.
Not sure at all how songs like that, "What's Up", "Don't Worry Be Happy" and "The Sound of Silence" made the list when artists like Nikki Minaj and Iggy Azalea can single handedly fill out this list all on their own
Hell even "Barbie Girl" by Aqua seems to get people going (more than likely ironically) at clubs in a way no other song does so not sure that deserves a place on the list either.
Have to agree with "Shiny Happy People" though, never got on with that song at all