Steve Carell, Alyson Hannigan, Duffy

May 13, 2008 on NBC at 12:00 AM


Tonight's guests are "The Office" Steve Carell, "How I Met Your Mother" Alyson Hannigan, and musical guest Duffy.

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Jimmy Fallon, William Shatner, Gary Vaynerchuk
Season 15 Episode 112

May 12, 2008

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Brian Williams, Leighton Meester, The Black Keys
Season 15 Episode 114

May 14, 2008