Tonight the Top 3 finalists will perform live for the nation, vying for the American Idol crown. The contestants will sing their hearts out in hopes of winning America's vote and the coveted opportunity to compete in next week's season finale. Ton... (more)ight's theme: Contestant's Choice, Judge's Choice, & Producer's Choice. Performing tonight: David Archuleta, David Cook, and Syesha Mercado.