American Idol’ whittled its 24 semifinalists down to 20 Thursday night. Amy Krebs, Nicole Tranquillo, Paul Kim and Rudy Cardenas were cast off by viewers getting their first chance to vote in the top-rated talent contest’s sixth season.
The two dozen aspiring singers _ 12 men and 12 women _ who faced off this week had made it through the show’s early auditions and last week’s tense and tearful opening Hollywood rounds.
