Tonight the Top 7 will perform live for the nation, vying for the American Idol title. The contestants will give it their all in hopes of winning America's vote and surviving another week. Who will play it safe and who will take the big risk? Their fate rests in your hands. Tonight's theme is the 1970's. Performing tonight are Tamyra Gray, Ryan Starr, Justin Guarini, Kelly Clarkson, Christina Christian, Nikki... see more