Bad song? Yes. Worst Counting Crows song? Probably (I haven't heard their last few albums). Worst song of all time? Not even in spitting distance of this:
(NSFW, unless your work is like, super chill)
A song about sex by a bunch of dudes who probably think babies come out of a woman's butt, and that breasts feel like squeezing a bag of sand. You can contract HPV just from looking at these dudes. And the worst part, the very worst part of all, is that this piece of crap will be stuck in your head for the rest of the week.