Carrie Underwood has been added as a performer on the Grammy Awards to be held Feb. 11 in Los Angeles. She is nominated for best new artist and best country female vocal performance for "Jesus, Take the Wheel." Christina Aguilera, Mary J. Blige, Ludacris and Justin Timberlake have also been added as performers. As previously announced, the Dixie Chicks will also perform during the show, as will Beyonce, Gnarls Barkley and Red Hot Chili Peppers. The Grammys will air on CBS.