While Jessica Simpson came off as cool during her American Idol season 23 finale performance, she was actually a bundle of nerves on the inside. "Oh, my God, I was dying," Simpson, 44, quipped in an interview with Extra published Monday,

The singer and designer debuted the new look, colored by Rita Hazan, during the season 23 finale of 'American Idol'Jessica Simpson debuted a brand-new hairstyle during a special appearance on the season 23 finale of American Idol on May 18The singer turned to her longtime pro Rita Hazan for the fresh dirty blonde hue Hazan tells PEOPLE it took "two hours" to do and looks "more natural"Jessica Simpson is shaking up her look!