He's prepared to go home at this point so the longer he stays is just gravy for him.
Frankly, what he sang tonight is what he should stick with when possible. He looked like vintage Rat Pack and he had some fun with it.
I hope he doesn't go home yet. He, Taylor and Chris are my top 3. :) I would love to see those 3 in the finals. With Paris or Katharine in the 4 spot.