IMHO

If I were in charge of the Season Finale, I would re-unite Kelly Clarkson and Justin Guarini and do some duets with Katharine & Taylor. Mix it up the four in different combinations... guaranteed success.

And it would be a nice gesture of American Idol to help Justin on a come-back after they did such an awful job promoting his first album.

I'll leave the recap of the Top 3 to the masterful wordsmith Jesse...