What the .....?

My husband got us hooked on American Idol this season. I think I've only watched one season all the way through. We were living with my parents while our house was being built and we wanted to watch all the crapper singers. Mom and Dad got hooked so we had to watch the whole season. That was the season Fantasia won.

My dearest husband said we would only watch the crapper singers again. Unfornuately I need someone to explain what the h-e double hockey sticks Sanjaya was doing this week. And why is he still on the show?

Please help me understand.