Taylor Swift will be featured in a back-to-school advertising campaign for the L.e.i. clothing line. Swift alluded to the endorsement Monday (May 12) during a press conference in Nashville, but the deal was confirmed Tuesday by Jones Apparel Group Inc., L.e.i.’s parent company. Fashion photographer Peggy Sirota will shoot the images featuring Swift and a variety of jeans and tops. The ads will debut in the August issues of Teen Vogue, Cosmopolitan, Seventeen and other fashion and entertainment magazines. The campaign will also include online and mobile marketing elements and a strong presence within Wal-Mart stores.