The Dixie Chicks got a warm welcome in Greenville, S.C. as they kicked-off their summer concert tour on Thursday. The sold-out crowd cheered on the Chicks, whose album plummeted on country charts after singer Natalie Maines said she was ashamed of President Bush in March. Last night, Maines thanked the crowd for their support and rejoiced, "They said you might not come, but we knew you would."