The platinum-selling Dixie Chicks now each have three tiny chicken feet tattoos on their ankles. The first two were to celebrate their first No. 1 single and gold album Wide Open Spaces. The latest commemorates the album being certified platinum. PLUS… The Chicks are slated to perform on The Late Show with David Letterman for the second time around on September 21st. This time it will actually be televised. The first time was years ago when the girls tried to stage an impromptu audition and got thrown out by a security guard. Two days afterwards, the Chicks will perform live from Nashville on CBS This Morning and again that evening on the CMA Awards.