The way I look at it is that if a band/artist has a huge fan base then how can they possibly be overrated? How can all of the fans be wrong and you be right?
The thread is pointless, not only because of the people who obviously posted for effect, but also because the definition of 'overrated' is not clearly defined.
What exactly does it mean anyway?
We've had lots of bands/artists mentioned but a lot of them have absolutely loads of fans, and have done for maybe 40+ years, how on earth can that band be classed as overrated?
As an example, I don't like The Beatles, have never done, but to say that they are overrated is a complete joke, just ask any of their millions of fans that they have had since they first started.