If you haven't heard yet, The Preservation Hall Jazz Band & The Del McCoury Band will be appearing on The Late Show with David Letterman ON JULY 19TH! There was initially some misinformation going out that it was in July 20 but you can ignore that. SO TUNE IN ON JULY 19!
Read the article by Keith Spera(but ignore the date):
Preservation Hall Jazz Band to appear on Letterman show