Like, for example, the boundary between horrible-sounding garbage and moderately annoying nonsense, over which your "winning" song cannot climb.
Urgh. Every year, I think, "The winner's song can't be worse than last year's, can it?" and I am totally surprised by how ear-bleedingly bad the song is.*
Anyhow, I managed to stop vomiting long enough to read American Idol Winner: Can Google Predict the Results?, which contains this intriguing graphic:
I don't really know what the unit of measurement is along the x-axis — millions of queries? percentage of all queries about American Idol? — but it looks pretty awesome for Glambert.
I'm not entirely discounting an upset by Kris, though. He's more in the mold of an American Idol winner, anyway — it might be better for Adam if he doesn't win. Basically, I'm hedging my bets and trying not to be too disappointed later.
Okay, Kelly's song from the first year has kind of grown on me. I like Fantasia's song, too, but that is mostly a result of her singing it on coronation night and not its inherent musical structure or lyrics.