The Dixie Chicks, from left Emily Robison, Natalie Maines and Martie Seidel perform at the Country Music Association Awards show in Nashville, Tenn., Sept. 22, 1999. With Shania Twain and Garth Brooks staying home this year, the country music industry is hoping the first top-billed tour of the Dixie Chicks can boost sluggish concert ticket and album sales. (AP Photo/Michael S. Green)