Jennifer Lopez treated herself to some shopping at Gucci in LA yesterday. Her time at the store was for both business and pleasure, as she and her kids, Max and Emme, front its new ad campaign and recently helped launch its children's line. J Lo's also busy with her American Idol duties, and she seems right at home at the judges' table. The appointment on the program helped earn Jennifer a spot on Barbara Walters's list of 2010's Most Fascinating People, along with Kate Middleton, Betty White, Justin Bieber, and more. Barbara's special will air next Thursday night with an interview from Jennifer, though it's safe to assume she won't address her latest sex-tape drama with ex-husband Ojani Noa.