Of the 24 semifinalists chosen last week, the Top 12 girls 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: Joanne Borgella, Kristy Lee Cook, Amy Davis, Asia'h Epperson, Alexandrea Lushington, Kady Malloy, Ramiele Malubay, Syesha Mercado, Amanda Overmyer, Carly Smithson, Alaina Whitaker, and Brooke White.