The Final 4 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 surviving another week in the competition. Tonights themes: Country Music ... (more)& Kenny Gamble and Leon Huff songs. Performing tonight: Anthony Fedorov, Harold "Bo" Bice, Carrie Underwood, and Vonzell Solomon.