Christina Aguilera, 40, got back on stage to sing her heart out on the night of June 10 and she looked incredible! The singer wore a black latex jumpsuit that included a section around her neck and a belted section around her waist as well as a matching headscarf for the grand opening of the Virgin Hotels Las Vegas. She also let her long blonde locks down and rocked nails painted black, blue eyeshadow, and dark blush-colored lipstick.