Tonight the Top 10 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. This Weeks Theme is: songs of the 21st centuryPerforming Tonight is:Lisa Tucker, Kellie Pickler, Ace Young, Taylor Hicks, Mandisa, Chris Daughtry, Katharine McPhee, Bucky Covington, Paris Bennett, Elliott Yamin,