Watch: Arnett, Letterman Tweet Challenge to Fallon

by | January 3, 2012 at 8:23 PM | General, Interviews

Will Arnett

The always funny Will Arnett hit “Late Show with David Letterman” on Tuesday and made a starting confession that made Letterman applaud, the “Up All Night” star revealed to viewers that he has a “particularly big head.” The confession prompted Letterman to immediately tweet the news to followers, which caused Arnett to use the opportunity to issue a “challenge” to NBC’s Jimmy Fallon using the hashtag #Ihaveagianthead. “Take that Fallon!”

Watch the exchange in the clip below…