Harry Connick, Jr., the jazz composer, crooner and author of Broadway's Thou Shalt Not, will make an appearance on "Late Show with David Letterman" on Nov. 14.
Connick penned the music and lyrics for Thou Shalt Not, his first foray into musical theatre. Susan Stroman directed the piece, which stars Craig Bierko and Kate Levering. Connick recently came out with a new album and is backing it up with performances in New York City.
Check local listings for times and stations.