Katherine Heigl and David Letterman Smoke an Electronic Cigarette 11.59K Chrystina Orlando 09/28/10 11:13AM Filed to: The Late Show The Late Show Katherine Heigl David Letterman e-cigarettes Ecigs Eletronic cigarettes TV Video Check the clip to see Katherine Heigl whip out an electric "SmokeStik" cigarette in the middle of her Late show interview. David Letterman gives the device a shot and seems to have a pretty good time with it![There was a video here]