Tonight the remaining 11 finalists perform live for the nation, vying for the American Idol crown. The contestants will sing their hearts out in hopes of winning America’s votes and surviving another week in the competition.Tonights Theme is: Songs of the 50'sPerforming Tonight:Katharine McPhee,Kellie Pickler,Lisa Tucker,Mandisa,Paris Bennett, Ace Young,Bucky Covington,Chris Daughtry,Elliott Yamin,Kevin Covais,Taylor Hicks