Late Show with David Letterman

Season 19, Episode 12

Episode Title: Marg Helgenberger, Michael Fassbender, Ellie Goulding

Air Date: 2012-01-18

Overview:

Dave welcomes actress Marg Helgenberger from the CBS drama series "CSI: Crime Scene Investigation," actor Michael Fassbender, and musical guest Ellie Goulding.