Kate Walsh arrives at Ed Sullivan Theater on The Late Show with David Letterman and transformed into a brilliant blue dress and heels from Christian Louboutin in New York on Wednesday (November 11). The 42-year-old humble, Private Practice talked little about her blue dress in the program. "It looks like I came from the future to serve cocktails in a plane," Kate joked Dave. She also shares about how life was before his acting career took off. "I had nothing," said Kate shared. "I was so broke that he had $ 3 - it was either a home or a subway token beer."