DeWyze beats Crystal Bowersox in season finale . The show also is the last for judge Paula Abdul . Former `` `` Beautiful Day '' '' judge Janet Jackson joins tribute to the United States . Simon Cowell , Alanis Morrisette among performers on finale .
DeWyze beats Crystal Bowersox in season finale . The show also is the last for judge Simon Cowell . Former `` Idol '' judge Paula Abdul joins tribute to Cowell . Janet Jackson , Alanis Morrisette among performers on finale .