I'm not a giant fan of guest judges on American Idol. I don't mind when musicians come in during the later rounds to mentor the contestants, but guest judges during auditions just kind of throw off the dynamic of the judging. However, recent judges like Kristen Chenoweth and Neil Patrick Harris are awesome enough that I totally don't mind them showing up. Avril Lavigne and Katy Perry? Well, that's an entirely different story.FOX has announced that the "I Kissed a Girl" singer will be guest-judging the final two days of the Los Angeles auditions along with Lavigne, who from what I remember from 2003, is an angry Canadian. If I was asked to think of two people that I would enjoy watching less, I would be hard-pressed to come up with anyone. Wait, okay. Heidi and Spencer Pratt would be worse, but that's just a given, right?
There's a difference between cheap, tawdry publicity stunts that are (pop) culturally significant and those that are just, well, cheap and tawdry. An example of the former is 
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