Tonight the Top 4 will perform two songs live for the nation, vying for the American Idol title. The contestants will give it their all in hopes of winning Americas vote and surviving another week. Who will play it safe and who will take the big risk? Their fate rests in your hands.Tonights theme is the 80s and 90s. Performing tonight are Tamyra Gray, Justin Guarini, Kelly Clarkson, and Nikki McKibbin.