Southern Idol?

Isn't it weird that pretty much all (except Justin) the finalists for American Idol are from the South? Let's write it out:

1. Kelly (TX) and Justin (PA)
   
2. Rueben (AL) and Clay (NC)
3. Fantasia (NC) and Diana (GA)
4. Carrie (OK) and Bo (AL)

It looks like more contestants are from the South than from other regions of the country (perhaps correlated with 'places where pagents are popular') so statistically winners coming from regions that are better represented makes sense, but still that's crazy. Everybody from the South beat out the Northerners each year...

I'm surprised nobody from CA has made the finals so far. Maybe in year 5?