I one had a "superlative song" thread group for threads on the best and worst songs. But there were too many "worst song" threads and the thread group got overloaded, so now I have a "worst song" crosslink group.
But everybody knows that it will always be a tie for worst song: "West of the Wall" and "You're Having My Baby."
I should recommend Dave Barry's Book of Bad Songs. It was written in 1997, so it's a little out of date. But then, none of us old folkies has ever heard a song written more recently than 1997, so it's OK.....

-Joe-