Elvis Costello and Sting have each written and will perform new tracks for the soundtrack to the film "Cold Mountain," due in September via producer T Bone Burnett's DMZ imprint through Columbia. Label president John Grady tells Billboard "other contemporary names" who have contributed to the project will be announced later. "Cold Mountain," starring Renee Zellweger, Jude Law, and Nicole Kidman, arrives Dec. 25 in U.S. theaters. As previously reported, the film also stars White Stripes guitarist Jack White, who plays a young confederate soldier in the film and sings three songs in it "in a very convincing manner," according to Grady. He adds that White was "an absolute student of [the music]. He was a beautiful kid to work with." The "Cold Mountain" soundtrack will largely be comprised of pre-1860s period music by such modern-day performers as Stanley, Hazel Dickens, Stuart Duncan, and Tim O'Brien.