Sheryl Crow wore a white T-shirt emblazoned with "War Is Not the Answer" when she accepted her American Music Award in January. Limp Bizkit frontman Fred Durst was received with cheers when he said, "This war has got to go away as soon as possible" during the Grammy telecast. But when Natalie Maines of the country music trio the Dixie Chicks said from a London stage that she was "ashamed" that President Bush was from Texas, the result was quite different. Angry fans flooded radio stations in San Diego, Nashville and Dallas with calls demanding that the Dixie Chicks' music...