Steve Carell, Alyson Hannigan, Duffy Late Night with Conan O'Brien : Season 15 Episode 111
TV-14 NBC 1h 00m
Aired: May 9th, 2008 @ 7:00 PM EST on NBC
Tonight's guests are "The Office" Steve Carell, "How I Met Your Mother" Alyson Hannigan, and musical guest Duffy.
