Of the 24 semifinalists chosen last week, the Top 12 boys will perform for America for the first time. Then it’s up to the viewers to vote for their favorites. Who will survive and who will go home?Performing Tonight are:A.J. TabaldoBlake LewisBrandon RogersChris RichardsonChris SlighJared CotterNicholas PedroPaul KimPhil StaceyRudy CardenasSanjaya Malakar Jason "Sundance" Head.