T.I. has been tapped to perform at the 49th Grammy Awards ceremony on February 11 in Los Angeles. The Atlanta rapper received four nominations this year, Best Rap Solo Performance and Best Rap Song for "What You Know," Best Rap/Song Collaboration for "My Love" (with Justin Timberlake), and Best Rap Album for King. Also performing during the show will be Gnarls Barkely and Ludacris, who will be joined onstage by Mary J. Blige and legendary group Earth Wind and Fire. Common, Queen Latifah and the Black Eyed Peas are scheduled to appear as presenters. The ceremony will take place live from the Staples Center in L.A., and will be broadcast at 8:00 p.m. EST.