We've given you some great examples of this in the past ... like this clip, or this one and especially our namesake.
Another great example of this effect is the official team song for the Toronto Blue Jays, "OK Blue Jays (Let's Play Ball!)". It's a bad song by any measure ... but it's so bad, it's good:
The song was written by Keith Hampshire in 1983 (and even made it to number 47 on the Canadian charts) but it really caught on with the fans during the 1985 ALCS. It has become a fixture during the seventh inning stretch at Jays' games since.
This season the Toronto brass decided to re-mix song ... making it 'better'. Only problem is that with the improvement it no longer has the 'so bad it's good' effect. What a shame.